Finding the Third Proportional to 61,215 and 89,727

Step by Step Solution

1. Step 1: Write the proportion equation
   61,215 : 89,727 = 89,727 : x
2. Step 2: Convert to fraction form
   61,215/89,727 = 89,727/x
3. Step 3: Cross multiply
   61,215x = 89,727 × 89,727
4. Step 4: Simplify right side
   61,215x = 8,050,934,529
5. Step 5: Solve for x
   x = 8,050,934,529/61,215
6. Step 6: Final answer
   x = 131,518.98