Finding the Third Proportional to 64,443.50 and 141,494.50

Step by Step Solution

1. Step 1: Write the proportion equation
   64,443.50 : 141,494.50 = 141,494.50 : x
2. Step 2: Convert to fraction form
   64,443.50/141,494.50 = 141,494.50/x
3. Step 3: Cross multiply
   64,443.50x = 141,494.50 × 141,494.50
4. Step 4: Simplify right side
   64,443.50x = 20,020,693,530.25
5. Step 5: Solve for x
   x = 20,020,693,530.25/64,443.50
6. Step 6: Final answer
   x = 310,670.49