Finding the Third Proportional to 64,393.50 and 139,505.25

Step by Step Solution

1. Step 1: Write the proportion equation
   64,393.50 : 139,505.25 = 139,505.25 : x
2. Step 2: Convert to fraction form
   64,393.50/139,505.25 = 139,505.25/x
3. Step 3: Cross multiply
   64,393.50x = 139,505.25 × 139,505.25
4. Step 4: Simplify right side
   64,393.50x = 19,461,714,777.56
5. Step 5: Solve for x
   x = 19,461,714,777.56/64,393.50
6. Step 6: Final answer
   x = 302,231.04