Finding the Third Proportional to 131,091 and 279,340.50

Step by Step Solution

1. Step 1: Write the proportion equation
   131,091 : 279,340.50 = 279,340.50 : x
2. Step 2: Convert to fraction form
   131,091/279,340.50 = 279,340.50/x
3. Step 3: Cross multiply
   131,091x = 279,340.50 × 279,340.50
4. Step 4: Simplify right side
   131,091x = 78,031,114,940.25
5. Step 5: Solve for x
   x = 78,031,114,940.25/131,091
6. Step 6: Final answer
   x = 595,243.88