Finding the Third Proportional to 63,142.50 and 136,126.50

Step by Step Solution

1. Step 1: Write the proportion equation
   63,142.50 : 136,126.50 = 136,126.50 : x
2. Step 2: Convert to fraction form
   63,142.50/136,126.50 = 136,126.50/x
3. Step 3: Cross multiply
   63,142.50x = 136,126.50 × 136,126.50
4. Step 4: Simplify right side
   63,142.50x = 18,530,424,002.25
5. Step 5: Solve for x
   x = 18,530,424,002.25/63,142.50
6. Step 6: Final answer
   x = 293,469.91