Finding the Third Proportional to 64,384.56 and 139,851.88

Step by Step Solution

1. Step 1: Write the proportion equation
   64,384.56 : 139,851.88 = 139,851.88 : x
2. Step 2: Convert to fraction form
   64,384.56/139,851.88 = 139,851.88/x
3. Step 3: Cross multiply
   64,384.56x = 139,851.88 × 139,851.88
4. Step 4: Simplify right side
   64,384.56x = 19,558,548,033.61
5. Step 5: Solve for x
   x = 19,558,548,033.61/64,384.56
6. Step 6: Final answer
   x = 303,777.00