Finding the Third Proportional to 15,985.50 and 34,885.50

Step by Step Solution

1. Step 1: Write the proportion equation
   15,985.50 : 34,885.50 = 34,885.50 : x
2. Step 2: Convert to fraction form
   15,985.50/34,885.50 = 34,885.50/x
3. Step 3: Cross multiply
   15,985.50x = 34,885.50 × 34,885.50
4. Step 4: Simplify right side
   15,985.50x = 1,216,998,110.25
5. Step 5: Solve for x
   x = 1,216,998,110.25/15,985.50
6. Step 6: Final answer
   x = 76,131.38