Finding the Third Proportional to 78,099.75 and 112,743

Step by Step Solution

1. Step 1: Write the proportion equation
   78,099.75 : 112,743 = 112,743 : x
2. Step 2: Convert to fraction form
   78,099.75/112,743 = 112,743/x
3. Step 3: Cross multiply
   78,099.75x = 112,743 × 112,743
4. Step 4: Simplify right side
   78,099.75x = 12,710,984,049
5. Step 5: Solve for x
   x = 12,710,984,049/78,099.75
6. Step 6: Final answer
   x = 162,753.20