Finding the Third Proportional to 60,390 and 88,809

Step by Step Solution

1. Step 1: Write the proportion equation
   60,390 : 88,809 = 88,809 : x
2. Step 2: Convert to fraction form
   60,390/88,809 = 88,809/x
3. Step 3: Cross multiply
   60,390x = 88,809 × 88,809
4. Step 4: Simplify right side
   60,390x = 7,887,038,481
5. Step 5: Solve for x
   x = 7,887,038,481/60,390
6. Step 6: Final answer
   x = 130,601.73