Finding the Third Proportional to 62,840 and 89,572

Step by Step Solution

1. Step 1: Write the proportion equation
   62,840 : 89,572 = 89,572 : x
2. Step 2: Convert to fraction form
   62,840/89,572 = 89,572/x
3. Step 3: Cross multiply
   62,840x = 89,572 × 89,572
4. Step 4: Simplify right side
   62,840x = 8,023,143,184
5. Step 5: Solve for x
   x = 8,023,143,184/62,840
6. Step 6: Final answer
   x = 127,675.73