Finding the Third Proportional to 574,722 and 870,061.50

Step by Step Solution

1. Step 1: Write the proportion equation
   574,722 : 870,061.50 = 870,061.50 : x
2. Step 2: Convert to fraction form
   574,722/870,061.50 = 870,061.50/x
3. Step 3: Cross multiply
   574,722x = 870,061.50 × 870,061.50
4. Step 4: Simplify right side
   574,722x = 757,007,013,782.25
5. Step 5: Solve for x
   x = 757,007,013,782.25/574,722
6. Step 6: Final answer
   x = 1,317,170.76