Finding the Third Proportional to 19,489.88 and 42,097.88

Step by Step Solution

1. Step 1: Write the proportion equation
   19,489.88 : 42,097.88 = 42,097.88 : x
2. Step 2: Convert to fraction form
   19,489.88/42,097.88 = 42,097.88/x
3. Step 3: Cross multiply
   19,489.88x = 42,097.88 × 42,097.88
4. Step 4: Simplify right side
   19,489.88x = 1,772,231,079.52
5. Step 5: Solve for x
   x = 1,772,231,079.52/19,489.88
6. Step 6: Final answer
   x = 90,930.86