Finding the Third Proportional to 66,472 and 89,552

Step by Step Solution

1. Step 1: Write the proportion equation
   66,472 : 89,552 = 89,552 : x
2. Step 2: Convert to fraction form
   66,472/89,552 = 89,552/x
3. Step 3: Cross multiply
   66,472x = 89,552 × 89,552
4. Step 4: Simplify right side
   66,472x = 8,019,560,704
5. Step 5: Solve for x
   x = 8,019,560,704/66,472
6. Step 6: Final answer
   x = 120,645.70