Finding the Third Proportional to 31,886.72 and 69,514.59

Step by Step Solution

1. Step 1: Write the proportion equation
   31,886.72 : 69,514.59 = 69,514.59 : x
2. Step 2: Convert to fraction form
   31,886.72/69,514.59 = 69,514.59/x
3. Step 3: Cross multiply
   31,886.72x = 69,514.59 × 69,514.59
4. Step 4: Simplify right side
   31,886.72x = 4,832,278,744.23
5. Step 5: Solve for x
   x = 4,832,278,744.23/31,886.72
6. Step 6: Final answer
   x = 151,545.19