Finding the Third Proportional to 516,357 and 1,118,490

Step by Step Solution

1. Step 1: Write the proportion equation
   516,357 : 1,118,490 = 1,118,490 : x
2. Step 2: Convert to fraction form
   516,357/1,118,490 = 1,118,490/x
3. Step 3: Cross multiply
   516,357x = 1,118,490 × 1,118,490
4. Step 4: Simplify right side
   516,357x = 1,251,019,880,100
5. Step 5: Solve for x
   x = 1,251,019,880,100/516,357
6. Step 6: Final answer
   x = 2,422,780.91