Finding the Third Proportional to 18,115.31 and 38,962.69

Step by Step Solution

1. Step 1: Write the proportion equation
   18,115.31 : 38,962.69 = 38,962.69 : x
2. Step 2: Convert to fraction form
   18,115.31/38,962.69 = 38,962.69/x
3. Step 3: Cross multiply
   18,115.31x = 38,962.69 × 38,962.69
4. Step 4: Simplify right side
   18,115.31x = 1,518,091,017.22
5. Step 5: Solve for x
   x = 1,518,091,017.22/18,115.31
6. Step 6: Final answer
   x = 83,801.54