Finding the Third Proportional to 39,911 and 58,111

Step by Step Solution

1. Step 1: Write the proportion equation
   39,911 : 58,111 = 58,111 : x
2. Step 2: Convert to fraction form
   39,911/58,111 = 58,111/x
3. Step 3: Cross multiply
   39,911x = 58,111 × 58,111
4. Step 4: Simplify right side
   39,911x = 3,376,888,321
5. Step 5: Solve for x
   x = 3,376,888,321/39,911
6. Step 6: Final answer
   x = 84,610.47