Finding the Third Proportional to 39,230.75 and 86,379.25

Step by Step Solution

1. Step 1: Write the proportion equation
   39,230.75 : 86,379.25 = 86,379.25 : x
2. Step 2: Convert to fraction form
   39,230.75/86,379.25 = 86,379.25/x
3. Step 3: Cross multiply
   39,230.75x = 86,379.25 × 86,379.25
4. Step 4: Simplify right side
   39,230.75x = 7,461,374,830.56
5. Step 5: Solve for x
   x = 7,461,374,830.56/39,230.75
6. Step 6: Final answer
   x = 190,192.00