Finding the Third Proportional to 42,768 and 62,208

Step by Step Solution

1. Step 1: Write the proportion equation
   42,768 : 62,208 = 62,208 : x
2. Step 2: Convert to fraction form
   42,768/62,208 = 62,208/x
3. Step 3: Cross multiply
   42,768x = 62,208 × 62,208
4. Step 4: Simplify right side
   42,768x = 3,869,835,264
5. Step 5: Solve for x
   x = 3,869,835,264/42,768
6. Step 6: Final answer
   x = 90,484.36