Finding the Third Proportional to 28,177 and 42,178.50

Step by Step Solution

1. Step 1: Write the proportion equation
   28,177 : 42,178.50 = 42,178.50 : x
2. Step 2: Convert to fraction form
   28,177/42,178.50 = 42,178.50/x
3. Step 3: Cross multiply
   28,177x = 42,178.50 × 42,178.50
4. Step 4: Simplify right side
   28,177x = 1,779,025,862.25
5. Step 5: Solve for x
   x = 1,779,025,862.25/28,177
6. Step 6: Final answer
   x = 63,137.52