Finding the Third Proportional to 64,892.25 and 140,800.50

Step by Step Solution

1. Step 1: Write the proportion equation
   64,892.25 : 140,800.50 = 140,800.50 : x
2. Step 2: Convert to fraction form
   64,892.25/140,800.50 = 140,800.50/x
3. Step 3: Cross multiply
   64,892.25x = 140,800.50 × 140,800.50
4. Step 4: Simplify right side
   64,892.25x = 19,824,780,800.25
5. Step 5: Solve for x
   x = 19,824,780,800.25/64,892.25
6. Step 6: Final answer
   x = 305,503.06