Finding the Third Proportional to 17,139 and 37,391

Step by Step Solution

1. Step 1: Write the proportion equation
   17,139 : 37,391 = 37,391 : x
2. Step 2: Convert to fraction form
   17,139/37,391 = 37,391/x
3. Step 3: Cross multiply
   17,139x = 37,391 × 37,391
4. Step 4: Simplify right side
   17,139x = 1,398,086,881
5. Step 5: Solve for x
   x = 1,398,086,881/17,139
6. Step 6: Final answer
   x = 81,573.42