Finding the Third Proportional to 18,000.56 and 39,929.63

Step by Step Solution

1. Step 1: Write the proportion equation
   18,000.56 : 39,929.63 = 39,929.63 : x
2. Step 2: Convert to fraction form
   18,000.56/39,929.63 = 39,929.63/x
3. Step 3: Cross multiply
   18,000.56x = 39,929.63 × 39,929.63
4. Step 4: Simplify right side
   18,000.56x = 1,594,374,952.64
5. Step 5: Solve for x
   x = 1,594,374,952.64/18,000.56
6. Step 6: Final answer
   x = 88,573.62