Finding the Third Proportional to 660,312.50 and 992,046

Step by Step Solution

1. Step 1: Write the proportion equation
   660,312.50 : 992,046 = 992,046 : x
2. Step 2: Convert to fraction form
   660,312.50/992,046 = 992,046/x
3. Step 3: Cross multiply
   660,312.50x = 992,046 × 992,046
4. Step 4: Simplify right side
   660,312.50x = 984,155,266,116
5. Step 5: Solve for x
   x = 984,155,266,116/660,312.50
6. Step 6: Final answer
   x = 1,490,438.64