Finding the Third Proportional to 31,885.59 and 69,512.34

Step by Step Solution

1. Step 1: Write the proportion equation
   31,885.59 : 69,512.34 = 69,512.34 : x
2. Step 2: Convert to fraction form
   31,885.59/69,512.34 = 69,512.34/x
3. Step 3: Cross multiply
   31,885.59x = 69,512.34 × 69,512.34
4. Step 4: Simplify right side
   31,885.59x = 4,831,965,933.62
5. Step 5: Solve for x
   x = 4,831,965,933.62/31,885.59
6. Step 6: Final answer
   x = 151,540.72