Finding the Third Proportional to 560,839.50 and 870,066.25

Step by Step Solution

1. Step 1: Write the proportion equation
   560,839.50 : 870,066.25 = 870,066.25 : x
2. Step 2: Convert to fraction form
   560,839.50/870,066.25 = 870,066.25/x
3. Step 3: Cross multiply
   560,839.50x = 870,066.25 × 870,066.25
4. Step 4: Simplify right side
   560,839.50x = 757,015,279,389.06
5. Step 5: Solve for x
   x = 757,015,279,389.06/560,839.50
6. Step 6: Final answer
   x = 1,349,789.52