Finding the Third Proportional to 130,440 and 274,891.50

Step by Step Solution

1. Step 1: Write the proportion equation
   130,440 : 274,891.50 = 274,891.50 : x
2. Step 2: Convert to fraction form
   130,440/274,891.50 = 274,891.50/x
3. Step 3: Cross multiply
   130,440x = 274,891.50 × 274,891.50
4. Step 4: Simplify right side
   130,440x = 75,565,336,772.25
5. Step 5: Solve for x
   x = 75,565,336,772.25/130,440
6. Step 6: Final answer
   x = 579,311.08