Finding the Third Proportional to 516,240 and 1,131,840

Step by Step Solution

1. Step 1: Write the proportion equation
   516,240 : 1,131,840 = 1,131,840 : x
2. Step 2: Convert to fraction form
   516,240/1,131,840 = 1,131,840/x
3. Step 3: Cross multiply
   516,240x = 1,131,840 × 1,131,840
4. Step 4: Simplify right side
   516,240x = 1,281,061,785,600
5. Step 5: Solve for x
   x = 1,281,061,785,600/516,240
6. Step 6: Final answer
   x = 2,481,523.68