Finding the Third Proportional to 20,113.88 and 42,899.63

Step by Step Solution

1. Step 1: Write the proportion equation
   20,113.88 : 42,899.63 = 42,899.63 : x
2. Step 2: Convert to fraction form
   20,113.88/42,899.63 = 42,899.63/x
3. Step 3: Cross multiply
   20,113.88x = 42,899.63 × 42,899.63
4. Step 4: Simplify right side
   20,113.88x = 1,840,377,825.14
5. Step 5: Solve for x
   x = 1,840,377,825.14/20,113.88
6. Step 6: Final answer
   x = 91,497.92