Finding the Third Proportional to 297,666 and 651,217.50

Step by Step Solution

1. Step 1: Write the proportion equation
   297,666 : 651,217.50 = 651,217.50 : x
2. Step 2: Convert to fraction form
   297,666/651,217.50 = 651,217.50/x
3. Step 3: Cross multiply
   297,666x = 651,217.50 × 651,217.50
4. Step 4: Simplify right side
   297,666x = 424,084,232,306.25
5. Step 5: Solve for x
   x = 424,084,232,306.25/297,666
6. Step 6: Final answer
   x = 1,424,698.26