Finding the Third Proportional to 15,687 and 32,912.25

Step by Step Solution

1. Step 1: Write the proportion equation
   15,687 : 32,912.25 = 32,912.25 : x
2. Step 2: Convert to fraction form
   15,687/32,912.25 = 32,912.25/x
3. Step 3: Cross multiply
   15,687x = 32,912.25 × 32,912.25
4. Step 4: Simplify right side
   15,687x = 1,083,216,200.06
5. Step 5: Solve for x
   x = 1,083,216,200.06/15,687
6. Step 6: Final answer
   x = 69,051.84