Finding the Third Proportional to 30,818 and 72,725

Step by Step Solution

1. Step 1: Write the proportion equation
   30,818 : 72,725 = 72,725 : x
2. Step 2: Convert to fraction form
   30,818/72,725 = 72,725/x
3. Step 3: Cross multiply
   30,818x = 72,725 × 72,725
4. Step 4: Simplify right side
   30,818x = 5,288,925,625
5. Step 5: Solve for x
   x = 5,288,925,625/30,818
6. Step 6: Final answer
   x = 171,618.07