Finding the Third Proportional to 19,615.13 and 42,897.88

Step by Step Solution

1. Step 1: Write the proportion equation
   19,615.13 : 42,897.88 = 42,897.88 : x
2. Step 2: Convert to fraction form
   19,615.13/42,897.88 = 42,897.88/x
3. Step 3: Cross multiply
   19,615.13x = 42,897.88 × 42,897.88
4. Step 4: Simplify right side
   19,615.13x = 1,840,227,679.52
5. Step 5: Solve for x
   x = 1,840,227,679.52/19,615.13
6. Step 6: Final answer
   x = 93,816.77