Finding the Third Proportional to 57,218 and 88,595

Step by Step Solution

1. Step 1: Write the proportion equation
   57,218 : 88,595 = 88,595 : x
2. Step 2: Convert to fraction form
   57,218/88,595 = 88,595/x
3. Step 3: Cross multiply
   57,218x = 88,595 × 88,595
4. Step 4: Simplify right side
   57,218x = 7,849,074,025
5. Step 5: Solve for x
   x = 7,849,074,025/57,218
6. Step 6: Final answer
   x = 137,178.41