Finding the Third Proportional to 31,564.85 and 70,136.35

Step by Step Solution

1. Step 1: Write the proportion equation
   31,564.85 : 70,136.35 = 70,136.35 : x
2. Step 2: Convert to fraction form
   31,564.85/70,136.35 = 70,136.35/x
3. Step 3: Cross multiply
   31,564.85x = 70,136.35 × 70,136.35
4. Step 4: Simplify right side
   31,564.85x = 4,919,107,536.53
5. Step 5: Solve for x
   x = 4,919,107,536.53/31,564.85
6. Step 6: Final answer
   x = 155,841.33