Finding the Third Proportional to 45,720 and 59,400

Step by Step Solution

1. Step 1: Write the proportion equation
   45,720 : 59,400 = 59,400 : x
2. Step 2: Convert to fraction form
   45,720/59,400 = 59,400/x
3. Step 3: Cross multiply
   45,720x = 59,400 × 59,400
4. Step 4: Simplify right side
   45,720x = 3,528,360,000
5. Step 5: Solve for x
   x = 3,528,360,000/45,720
6. Step 6: Final answer
   x = 77,173.23