Finding the Third Proportional to 49,192 and 78,144

Step by Step Solution

1. Step 1: Write the proportion equation
   49,192 : 78,144 = 78,144 : x
2. Step 2: Convert to fraction form
   49,192/78,144 = 78,144/x
3. Step 3: Cross multiply
   49,192x = 78,144 × 78,144
4. Step 4: Simplify right side
   49,192x = 6,106,484,736
5. Step 5: Solve for x
   x = 6,106,484,736/49,192
6. Step 6: Final answer
   x = 124,135.73