Final answer:
The Project Management Institute (PMI) is the professional organization in question, which has seen its membership grow significantly from 2002 to the current number, highlighting the increasing value of project management skills.
Step-by-step explanation:
The growth of the Project Management Institute reflects the increasing recognition of project management as a distinct professional field. PMI has established itself as the leading professional association for project managers around the globe, offering certifications such as the Project Management Professional (PMP)® which is recognized worldwide. Through its standards, certifications, resources, and networking opportunities, PMI has significantly contributed to the expansion of the project management profession. This is evidenced by its significant increase in membership over the years.
Increasing complexity in various industries and the necessity to manage tasks efficiently are factors that have reinforced the demand for skilled project managers. Consequently, the importance of organizations like PMI, which promote professional development and provide project management resources, has greatly magnified. The membership growth of PMI may continue as more individuals and companies recognize the benefits of employing certified project managers to ensure the success of their initiatives.