Finding the Third Proportional to 64,738.50 and 141,247.50

Step by Step Solution

1. Step 1: Write the proportion equation
   64,738.50 : 141,247.50 = 141,247.50 : x
2. Step 2: Convert to fraction form
   64,738.50/141,247.50 = 141,247.50/x
3. Step 3: Cross multiply
   64,738.50x = 141,247.50 × 141,247.50
4. Step 4: Simplify right side
   64,738.50x = 19,950,856,256.25
5. Step 5: Solve for x
   x = 19,950,856,256.25/64,738.50
6. Step 6: Final answer
   x = 308,176.07