Finding the Third Proportional to 31,886.06 and 69,512.81

Step by Step Solution

1. Step 1: Write the proportion equation
   31,886.06 : 69,512.81 = 69,512.81 : x
2. Step 2: Convert to fraction form
   31,886.06/69,512.81 = 69,512.81/x
3. Step 3: Cross multiply
   31,886.06x = 69,512.81 × 69,512.81
4. Step 4: Simplify right side
   31,886.06x = 4,832,031,101.66
5. Step 5: Solve for x
   x = 4,832,031,101.66/31,886.06
6. Step 6: Final answer
   x = 151,540.54