Finding the Third Proportional to 363,690 and 749,776.50

Step by Step Solution

1. Step 1: Write the proportion equation
   363,690 : 749,776.50 = 749,776.50 : x
2. Step 2: Convert to fraction form
   363,690/749,776.50 = 749,776.50/x
3. Step 3: Cross multiply
   363,690x = 749,776.50 × 749,776.50
4. Step 4: Simplify right side
   363,690x = 562,164,799,952.25
5. Step 5: Solve for x
   x = 562,164,799,952.25/363,690
6. Step 6: Final answer
   x = 1,545,725.21