Finding the Third Proportional to 38,864.81 and 61,987.78

Step by Step Solution

1. Step 1: Write the proportion equation
   38,864.81 : 61,987.78 = 61,987.78 : x
2. Step 2: Convert to fraction form
   38,864.81/61,987.78 = 61,987.78/x
3. Step 3: Cross multiply
   38,864.81x = 61,987.78 × 61,987.78
4. Step 4: Simplify right side
   38,864.81x = 3,842,485,024.30
5. Step 5: Solve for x
   x = 3,842,485,024.30/38,864.81
6. Step 6: Final answer
   x = 98,867.97