Finding the Third Proportional to 18,491.63 and 40,435.88

Step by Step Solution

1. Step 1: Write the proportion equation
   18,491.63 : 40,435.88 = 40,435.88 : x
2. Step 2: Convert to fraction form
   18,491.63/40,435.88 = 40,435.88/x
3. Step 3: Cross multiply
   18,491.63x = 40,435.88 × 40,435.88
4. Step 4: Simplify right side
   18,491.63x = 1,635,059,987.02
5. Step 5: Solve for x
   x = 1,635,059,987.02/18,491.63
6. Step 6: Final answer
   x = 88,421.65