Finding the Third Proportional to 45,711 and 70,638

Step by Step Solution

1. Step 1: Write the proportion equation
   45,711 : 70,638 = 70,638 : x
2. Step 2: Convert to fraction form
   45,711/70,638 = 70,638/x
3. Step 3: Cross multiply
   45,711x = 70,638 × 70,638
4. Step 4: Simplify right side
   45,711x = 4,989,727,044
5. Step 5: Solve for x
   x = 4,989,727,044/45,711
6. Step 6: Final answer
   x = 109,158.12