Finding the Third Proportional to 135,621 and 297,077.50

Step by Step Solution

1. Step 1: Write the proportion equation
   135,621 : 297,077.50 = 297,077.50 : x
2. Step 2: Convert to fraction form
   135,621/297,077.50 = 297,077.50/x
3. Step 3: Cross multiply
   135,621x = 297,077.50 × 297,077.50
4. Step 4: Simplify right side
   135,621x = 88,255,041,006.25
5. Step 5: Solve for x
   x = 88,255,041,006.25/135,621
6. Step 6: Final answer
   x = 650,747.61