Finding the Third Proportional to 76,986.50 and 165,432

Step by Step Solution

1. Step 1: Write the proportion equation
   76,986.50 : 165,432 = 165,432 : x
2. Step 2: Convert to fraction form
   76,986.50/165,432 = 165,432/x
3. Step 3: Cross multiply
   76,986.50x = 165,432 × 165,432
4. Step 4: Simplify right side
   76,986.50x = 27,367,746,624
5. Step 5: Solve for x
   x = 27,367,746,624/76,986.50
6. Step 6: Final answer
   x = 355,487.61