Finding the Third Proportional to 656,854.50 and 989,982

Step by Step Solution

1. Step 1: Write the proportion equation
   656,854.50 : 989,982 = 989,982 : x
2. Step 2: Convert to fraction form
   656,854.50/989,982 = 989,982/x
3. Step 3: Cross multiply
   656,854.50x = 989,982 × 989,982
4. Step 4: Simplify right side
   656,854.50x = 980,064,360,324
5. Step 5: Solve for x
   x = 980,064,360,324/656,854.50
6. Step 6: Final answer
   x = 1,492,057.01