Finding the Third Proportional to 105,139.50 and 151,130.25

Step by Step Solution

1. Step 1: Write the proportion equation
   105,139.50 : 151,130.25 = 151,130.25 : x
2. Step 2: Convert to fraction form
   105,139.50/151,130.25 = 151,130.25/x
3. Step 3: Cross multiply
   105,139.50x = 151,130.25 × 151,130.25
4. Step 4: Simplify right side
   105,139.50x = 22,840,352,465.06
5. Step 5: Solve for x
   x = 22,840,352,465.06/105,139.50
6. Step 6: Final answer
   x = 217,238.55