Finding the Third Proportional to 48,434 and 72,930

Step by Step Solution

1. Step 1: Write the proportion equation
   48,434 : 72,930 = 72,930 : x
2. Step 2: Convert to fraction form
   48,434/72,930 = 72,930/x
3. Step 3: Cross multiply
   48,434x = 72,930 × 72,930
4. Step 4: Simplify right side
   48,434x = 5,318,784,900
5. Step 5: Solve for x
   x = 5,318,784,900/48,434
6. Step 6: Final answer
   x = 109,815.11