Finding the Third Proportional to 17,558.65 and 38,402.07

Step by Step Solution

1. Step 1: Write the proportion equation
   17,558.65 : 38,402.07 = 38,402.07 : x
2. Step 2: Convert to fraction form
   17,558.65/38,402.07 = 38,402.07/x
3. Step 3: Cross multiply
   17,558.65x = 38,402.07 × 38,402.07
4. Step 4: Simplify right side
   17,558.65x = 1,474,718,854.28
5. Step 5: Solve for x
   x = 1,474,718,854.28/17,558.65
6. Step 6: Final answer
   x = 83,988.18