Finding the Third Proportional to 354,847.50 and 756,146.81

Step by Step Solution

1. Step 1: Write the proportion equation
   354,847.50 : 756,146.81 = 756,146.81 : x
2. Step 2: Convert to fraction form
   354,847.50/756,146.81 = 756,146.81/x
3. Step 3: Cross multiply
   354,847.50x = 756,146.81 × 756,146.81
4. Step 4: Simplify right side
   354,847.50x = 571,758,002,053.91
5. Step 5: Solve for x
   x = 571,758,002,053.91/354,847.50
6. Step 6: Final answer
   x = 1,611,278.09