Finding the Third Proportional to 39,858 and 59,881.50

Step by Step Solution

1. Step 1: Write the proportion equation
   39,858 : 59,881.50 = 59,881.50 : x
2. Step 2: Convert to fraction form
   39,858/59,881.50 = 59,881.50/x
3. Step 3: Cross multiply
   39,858x = 59,881.50 × 59,881.50
4. Step 4: Simplify right side
   39,858x = 3,585,794,042.25
5. Step 5: Solve for x
   x = 3,585,794,042.25/39,858
6. Step 6: Final answer
   x = 89,964.22