Finding the Third Proportional to 78,985.50 and 173,982

Step by Step Solution

1. Step 1: Write the proportion equation
   78,985.50 : 173,982 = 173,982 : x
2. Step 2: Convert to fraction form
   78,985.50/173,982 = 173,982/x
3. Step 3: Cross multiply
   78,985.50x = 173,982 × 173,982
4. Step 4: Simplify right side
   78,985.50x = 30,269,736,324
5. Step 5: Solve for x
   x = 30,269,736,324/78,985.50
6. Step 6: Final answer
   x = 383,231.56