Finding the Third Proportional to 60,308 and 86,880

Step by Step Solution

1. Step 1: Write the proportion equation
   60,308 : 86,880 = 86,880 : x
2. Step 2: Convert to fraction form
   60,308/86,880 = 86,880/x
3. Step 3: Cross multiply
   60,308x = 86,880 × 86,880
4. Step 4: Simplify right side
   60,308x = 7,548,134,400
5. Step 5: Solve for x
   x = 7,548,134,400/60,308
6. Step 6: Final answer
   x = 125,159.75