Finding the Third Proportional to 17,681.63 and 36,799.31

Step by Step Solution

1. Step 1: Write the proportion equation
   17,681.63 : 36,799.31 = 36,799.31 : x
2. Step 2: Convert to fraction form
   17,681.63/36,799.31 = 36,799.31/x
3. Step 3: Cross multiply
   17,681.63x = 36,799.31 × 36,799.31
4. Step 4: Simplify right side
   17,681.63x = 1,354,189,400.47
5. Step 5: Solve for x
   x = 1,354,189,400.47/17,681.63
6. Step 6: Final answer
   x = 76,587.38