Finding the Third Proportional to 18,436.50 and 39,994.88

Step by Step Solution

1. Step 1: Write the proportion equation
   18,436.50 : 39,994.88 = 39,994.88 : x
2. Step 2: Convert to fraction form
   18,436.50/39,994.88 = 39,994.88/x
3. Step 3: Cross multiply
   18,436.50x = 39,994.88 × 39,994.88
4. Step 4: Simplify right side
   18,436.50x = 1,599,590,026.27
5. Step 5: Solve for x
   x = 1,599,590,026.27/18,436.50
6. Step 6: Final answer
   x = 86,762.13