Finding the Third Proportional to 416,557.50 and 862,653

Step by Step Solution

1. Step 1: Write the proportion equation
   416,557.50 : 862,653 = 862,653 : x
2. Step 2: Convert to fraction form
   416,557.50/862,653 = 862,653/x
3. Step 3: Cross multiply
   416,557.50x = 862,653 × 862,653
4. Step 4: Simplify right side
   416,557.50x = 744,170,198,409
5. Step 5: Solve for x
   x = 744,170,198,409/416,557.50
6. Step 6: Final answer
   x = 1,786,476.53