Finding the Third Proportional to 80,516 and 173,432

Step by Step Solution

1. Step 1: Write the proportion equation
   80,516 : 173,432 = 173,432 : x
2. Step 2: Convert to fraction form
   80,516/173,432 = 173,432/x
3. Step 3: Cross multiply
   80,516x = 173,432 × 173,432
4. Step 4: Simplify right side
   80,516x = 30,078,658,624
5. Step 5: Solve for x
   x = 30,078,658,624/80,516
6. Step 6: Final answer
   x = 373,573.68