Finding the Third Proportional to 42,768 and 63,312

Step by Step Solution

1. Step 1: Write the proportion equation
   42,768 : 63,312 = 63,312 : x
2. Step 2: Convert to fraction form
   42,768/63,312 = 63,312/x
3. Step 3: Cross multiply
   42,768x = 63,312 × 63,312
4. Step 4: Simplify right side
   42,768x = 4,008,409,344
5. Step 5: Solve for x
   x = 4,008,409,344/42,768
6. Step 6: Final answer
   x = 93,724.50