Finding the Third Proportional to 21,498.75 and 47,138.63

Step by Step Solution

1. Step 1: Write the proportion equation
   21,498.75 : 47,138.63 = 47,138.63 : x
2. Step 2: Convert to fraction form
   21,498.75/47,138.63 = 47,138.63/x
3. Step 3: Cross multiply
   21,498.75x = 47,138.63 × 47,138.63
4. Step 4: Simplify right side
   21,498.75x = 2,222,049,966.89
5. Step 5: Solve for x
   x = 2,222,049,966.89/21,498.75
6. Step 6: Final answer
   x = 103,357.17