Finding the Third Proportional to 39,234.50 and 86,386.75

Step by Step Solution

1. Step 1: Write the proportion equation
   39,234.50 : 86,386.75 = 86,386.75 : x
2. Step 2: Convert to fraction form
   39,234.50/86,386.75 = 86,386.75/x
3. Step 3: Cross multiply
   39,234.50x = 86,386.75 × 86,386.75
4. Step 4: Simplify right side
   39,234.50x = 7,462,670,575.56
5. Step 5: Solve for x
   x = 7,462,670,575.56/39,234.50
6. Step 6: Final answer
   x = 190,206.85