Finding the Third Proportional to 59,040 and 91,440

Step by Step Solution

1. Step 1: Write the proportion equation
   59,040 : 91,440 = 91,440 : x
2. Step 2: Convert to fraction form
   59,040/91,440 = 91,440/x
3. Step 3: Cross multiply
   59,040x = 91,440 × 91,440
4. Step 4: Simplify right side
   59,040x = 8,361,273,600
5. Step 5: Solve for x
   x = 8,361,273,600/59,040
6. Step 6: Final answer
   x = 141,620.49