Finding the Third Proportional to 105,140.50 and 151,131.50

Step by Step Solution

1. Step 1: Write the proportion equation
   105,140.50 : 151,131.50 = 151,131.50 : x
2. Step 2: Convert to fraction form
   105,140.50/151,131.50 = 151,131.50/x
3. Step 3: Cross multiply
   105,140.50x = 151,131.50 × 151,131.50
4. Step 4: Simplify right side
   105,140.50x = 22,840,730,292.25
5. Step 5: Solve for x
   x = 22,840,730,292.25/105,140.50
6. Step 6: Final answer
   x = 217,240.08