Finding the Third Proportional to 64,555.50 and 141,553.50

Step by Step Solution

1. Step 1: Write the proportion equation
   64,555.50 : 141,553.50 = 141,553.50 : x
2. Step 2: Convert to fraction form
   64,555.50/141,553.50 = 141,553.50/x
3. Step 3: Cross multiply
   64,555.50x = 141,553.50 × 141,553.50
4. Step 4: Simplify right side
   64,555.50x = 20,037,393,362.25
5. Step 5: Solve for x
   x = 20,037,393,362.25/64,555.50
6. Step 6: Final answer
   x = 310,390.18