Finding the Third Proportional to 359,669.25 and 787,864.50

Step by Step Solution

1. Step 1: Write the proportion equation
   359,669.25 : 787,864.50 = 787,864.50 : x
2. Step 2: Convert to fraction form
   359,669.25/787,864.50 = 787,864.50/x
3. Step 3: Cross multiply
   359,669.25x = 787,864.50 × 787,864.50
4. Step 4: Simplify right side
   359,669.25x = 620,730,470,360.25
5. Step 5: Solve for x
   x = 620,730,470,360.25/359,669.25
6. Step 6: Final answer
   x = 1,725,836.92