Finding the Third Proportional to 516,342 and 1,118,461

Step by Step Solution

1. Step 1: Write the proportion equation
   516,342 : 1,118,461 = 1,118,461 : x
2. Step 2: Convert to fraction form
   516,342/1,118,461 = 1,118,461/x
3. Step 3: Cross multiply
   516,342x = 1,118,461 × 1,118,461
4. Step 4: Simplify right side
   516,342x = 1,250,955,008,521
5. Step 5: Solve for x
   x = 1,250,955,008,521/516,342
6. Step 6: Final answer
   x = 2,422,725.65