Finding the Third Proportional to 48,217.78 and 72,279.84

Step by Step Solution

1. Step 1: Write the proportion equation
   48,217.78 : 72,279.84 = 72,279.84 : x
2. Step 2: Convert to fraction form
   48,217.78/72,279.84 = 72,279.84/x
3. Step 3: Cross multiply
   48,217.78x = 72,279.84 × 72,279.84
4. Step 4: Simplify right side
   48,217.78x = 5,224,375,812.52
5. Step 5: Solve for x
   x = 5,224,375,812.52/48,217.78
6. Step 6: Final answer
   x = 108,349.57