Finding the Third Proportional to 561,116.50 and 870,622

Step by Step Solution

1. Step 1: Write the proportion equation
   561,116.50 : 870,622 = 870,622 : x
2. Step 2: Convert to fraction form
   561,116.50/870,622 = 870,622/x
3. Step 3: Cross multiply
   561,116.50x = 870,622 × 870,622
4. Step 4: Simplify right side
   561,116.50x = 757,982,666,884
5. Step 5: Solve for x
   x = 757,982,666,884/561,116.50
6. Step 6: Final answer
   x = 1,350,847.22