Finding the Third Proportional to 436,609 and 652,217.50

Step by Step Solution

1. Step 1: Write the proportion equation
   436,609 : 652,217.50 = 652,217.50 : x
2. Step 2: Convert to fraction form
   436,609/652,217.50 = 652,217.50/x
3. Step 3: Cross multiply
   436,609x = 652,217.50 × 652,217.50
4. Step 4: Simplify right side
   436,609x = 425,387,667,306.25
5. Step 5: Solve for x
   x = 425,387,667,306.25/436,609
6. Step 6: Final answer
   x = 974,298.90