Finding the Third Proportional to 39,980 and 58,674

Step by Step Solution

1. Step 1: Write the proportion equation
   39,980 : 58,674 = 58,674 : x
2. Step 2: Convert to fraction form
   39,980/58,674 = 58,674/x
3. Step 3: Cross multiply
   39,980x = 58,674 × 58,674
4. Step 4: Simplify right side
   39,980x = 3,442,638,276
5. Step 5: Solve for x
   x = 3,442,638,276/39,980
6. Step 6: Final answer
   x = 86,109.01