Finding the Third Proportional to 39,875.63 and 54,178.88

Step by Step Solution

1. Step 1: Write the proportion equation
   39,875.63 : 54,178.88 = 54,178.88 : x
2. Step 2: Convert to fraction form
   39,875.63/54,178.88 = 54,178.88/x
3. Step 3: Cross multiply
   39,875.63x = 54,178.88 × 54,178.88
4. Step 4: Simplify right side
   39,875.63x = 2,935,350,496.27
5. Step 5: Solve for x
   x = 2,935,350,496.27/39,875.63
6. Step 6: Final answer
   x = 73,612.65