Finding the Third Proportional to 60,384 and 128,076

Step by Step Solution

1. Step 1: Write the proportion equation
   60,384 : 128,076 = 128,076 : x
2. Step 2: Convert to fraction form
   60,384/128,076 = 128,076/x
3. Step 3: Cross multiply
   60,384x = 128,076 × 128,076
4. Step 4: Simplify right side
   60,384x = 16,403,461,776
5. Step 5: Solve for x
   x = 16,403,461,776/60,384
6. Step 6: Final answer
   x = 271,652.45