Finding the Third Proportional to 359,640.25 and 787,008.25

Step by Step Solution

1. Step 1: Write the proportion equation
   359,640.25 : 787,008.25 = 787,008.25 : x
2. Step 2: Convert to fraction form
   359,640.25/787,008.25 = 787,008.25/x
3. Step 3: Cross multiply
   359,640.25x = 787,008.25 × 787,008.25
4. Step 4: Simplify right side
   359,640.25x = 619,381,985,568.06
5. Step 5: Solve for x
   x = 619,381,985,568.06/359,640.25
6. Step 6: Final answer
   x = 1,722,226.55