Finding the Third Proportional to 29,112.75 and 54,139.50

Step by Step Solution

1. Step 1: Write the proportion equation
   29,112.75 : 54,139.50 = 54,139.50 : x
2. Step 2: Convert to fraction form
   29,112.75/54,139.50 = 54,139.50/x
3. Step 3: Cross multiply
   29,112.75x = 54,139.50 × 54,139.50
4. Step 4: Simplify right side
   29,112.75x = 2,931,085,460.25
5. Step 5: Solve for x
   x = 2,931,085,460.25/29,112.75
6. Step 6: Final answer
   x = 100,680.47