Finding the Third Proportional to 407,113.59 and 870,134.27

Step by Step Solution

1. Step 1: Write the proportion equation
   407,113.59 : 870,134.27 = 870,134.27 : x
2. Step 2: Convert to fraction form
   407,113.59/870,134.27 = 870,134.27/x
3. Step 3: Cross multiply
   407,113.59x = 870,134.27 × 870,134.27
4. Step 4: Simplify right side
   407,113.59x = 757,133,653,810.61
5. Step 5: Solve for x
   x = 757,133,653,810.61/407,113.59
6. Step 6: Final answer
   x = 1,859,760.19