Finding the Third Proportional to 42,701 and 68,215.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,701 : 68,215.50 = 68,215.50 : x
2. Step 2: Convert to fraction form
   42,701/68,215.50 = 68,215.50/x
3. Step 3: Cross multiply
   42,701x = 68,215.50 × 68,215.50
4. Step 4: Simplify right side
   42,701x = 4,653,354,440.25
5. Step 5: Solve for x
   x = 4,653,354,440.25/42,701
6. Step 6: Final answer
   x = 108,975.30