Finding the Third Proportional to 21,697.31 and 45,122.63

Step by Step Solution

1. Step 1: Write the proportion equation
   21,697.31 : 45,122.63 = 45,122.63 : x
2. Step 2: Convert to fraction form
   21,697.31/45,122.63 = 45,122.63/x
3. Step 3: Cross multiply
   21,697.31x = 45,122.63 × 45,122.63
4. Step 4: Simplify right side
   21,697.31x = 2,036,051,286.89
5. Step 5: Solve for x
   x = 2,036,051,286.89/21,697.31
6. Step 6: Final answer
   x = 93,838.87