Finding the Third Proportional to 48,530 and 72,861

Step by Step Solution

1. Step 1: Write the proportion equation
   48,530 : 72,861 = 72,861 : x
2. Step 2: Convert to fraction form
   48,530/72,861 = 72,861/x
3. Step 3: Cross multiply
   48,530x = 72,861 × 72,861
4. Step 4: Simplify right side
   48,530x = 5,308,725,321
5. Step 5: Solve for x
   x = 5,308,725,321/48,530
6. Step 6: Final answer
   x = 109,390.59