Finding the Third Proportional to 560,870 and 870,113

Step by Step Solution

1. Step 1: Write the proportion equation
   560,870 : 870,113 = 870,113 : x
2. Step 2: Convert to fraction form
   560,870/870,113 = 870,113/x
3. Step 3: Cross multiply
   560,870x = 870,113 × 870,113
4. Step 4: Simplify right side
   560,870x = 757,096,632,769
5. Step 5: Solve for x
   x = 757,096,632,769/560,870
6. Step 6: Final answer
   x = 1,349,861.17