Finding the Third Proportional to 32,487.75 and 69,990.75

Step by Step Solution

1. Step 1: Write the proportion equation
   32,487.75 : 69,990.75 = 69,990.75 : x
2. Step 2: Convert to fraction form
   32,487.75/69,990.75 = 69,990.75/x
3. Step 3: Cross multiply
   32,487.75x = 69,990.75 × 69,990.75
4. Step 4: Simplify right side
   32,487.75x = 4,898,705,085.56
5. Step 5: Solve for x
   x = 4,898,705,085.56/32,487.75
6. Step 6: Final answer
   x = 150,786.22