Finding the Third Proportional to 475,429.50 and 647,534.25

Step by Step Solution

1. Step 1: Write the proportion equation
   475,429.50 : 647,534.25 = 647,534.25 : x
2. Step 2: Convert to fraction form
   475,429.50/647,534.25 = 647,534.25/x
3. Step 3: Cross multiply
   475,429.50x = 647,534.25 × 647,534.25
4. Step 4: Simplify right side
   475,429.50x = 419,300,604,923.06
5. Step 5: Solve for x
   x = 419,300,604,923.06/475,429.50
6. Step 6: Final answer
   x = 881,940.66