Finding the Third Proportional to 60,378.75 and 131,139

Step by Step Solution

1. Step 1: Write the proportion equation
   60,378.75 : 131,139 = 131,139 : x
2. Step 2: Convert to fraction form
   60,378.75/131,139 = 131,139/x
3. Step 3: Cross multiply
   60,378.75x = 131,139 × 131,139
4. Step 4: Simplify right side
   60,378.75x = 17,197,437,321
5. Step 5: Solve for x
   x = 17,197,437,321/60,378.75
6. Step 6: Final answer
   x = 284,825.99