Finding the Third Proportional to 49,788 and 76,128

Step by Step Solution

1. Step 1: Write the proportion equation
   49,788 : 76,128 = 76,128 : x
2. Step 2: Convert to fraction form
   49,788/76,128 = 76,128/x
3. Step 3: Cross multiply
   49,788x = 76,128 × 76,128
4. Step 4: Simplify right side
   49,788x = 5,795,472,384
5. Step 5: Solve for x
   x = 5,795,472,384/49,788
6. Step 6: Final answer
   x = 116,403.00