Finding the Third Proportional to 64,303.50 and 141,057.75

Step by Step Solution

1. Step 1: Write the proportion equation
   64,303.50 : 141,057.75 = 141,057.75 : x
2. Step 2: Convert to fraction form
   64,303.50/141,057.75 = 141,057.75/x
3. Step 3: Cross multiply
   64,303.50x = 141,057.75 × 141,057.75
4. Step 4: Simplify right side
   64,303.50x = 19,897,288,835.06
5. Step 5: Solve for x
   x = 19,897,288,835.06/64,303.50
6. Step 6: Final answer
   x = 309,427.77