Finding the Third Proportional to 71,099.25 and 155,590.50

Step by Step Solution

1. Step 1: Write the proportion equation
   71,099.25 : 155,590.50 = 155,590.50 : x
2. Step 2: Convert to fraction form
   71,099.25/155,590.50 = 155,590.50/x
3. Step 3: Cross multiply
   71,099.25x = 155,590.50 × 155,590.50
4. Step 4: Simplify right side
   71,099.25x = 24,208,403,690.25
5. Step 5: Solve for x
   x = 24,208,403,690.25/71,099.25
6. Step 6: Final answer
   x = 340,487.47