Finding the Third Proportional to 18,338.91 and 38,272.50

Step by Step Solution

1. Step 1: Write the proportion equation
   18,338.91 : 38,272.50 = 38,272.50 : x
2. Step 2: Convert to fraction form
   18,338.91/38,272.50 = 38,272.50/x
3. Step 3: Cross multiply
   18,338.91x = 38,272.50 × 38,272.50
4. Step 4: Simplify right side
   18,338.91x = 1,464,784,256.25
5. Step 5: Solve for x
   x = 1,464,784,256.25/18,338.91
6. Step 6: Final answer
   x = 79,873.04