Finding the Third Proportional to 45,139 and 60,388

Step by Step Solution

1. Step 1: Write the proportion equation
   45,139 : 60,388 = 60,388 : x
2. Step 2: Convert to fraction form
   45,139/60,388 = 60,388/x
3. Step 3: Cross multiply
   45,139x = 60,388 × 60,388
4. Step 4: Simplify right side
   45,139x = 3,646,710,544
5. Step 5: Solve for x
   x = 3,646,710,544/45,139
6. Step 6: Final answer
   x = 80,788.47