Finding the Third Proportional to 45,800 and 61,080

Step by Step Solution

1. Step 1: Write the proportion equation
   45,800 : 61,080 = 61,080 : x
2. Step 2: Convert to fraction form
   45,800/61,080 = 61,080/x
3. Step 3: Cross multiply
   45,800x = 61,080 × 61,080
4. Step 4: Simplify right side
   45,800x = 3,730,766,400
5. Step 5: Solve for x
   x = 3,730,766,400/45,800
6. Step 6: Final answer
   x = 81,457.78