Finding the Third Proportional to 43,099.50 and 68,538

Step by Step Solution

1. Step 1: Write the proportion equation
   43,099.50 : 68,538 = 68,538 : x
2. Step 2: Convert to fraction form
   43,099.50/68,538 = 68,538/x
3. Step 3: Cross multiply
   43,099.50x = 68,538 × 68,538
4. Step 4: Simplify right side
   43,099.50x = 4,697,457,444
5. Step 5: Solve for x
   x = 4,697,457,444/43,099.50
6. Step 6: Final answer
   x = 108,991.00