Finding the Third Proportional to 611,909 and 1,346,142

Step by Step Solution

1. Step 1: Write the proportion equation
   611,909 : 1,346,142 = 1,346,142 : x
2. Step 2: Convert to fraction form
   611,909/1,346,142 = 1,346,142/x
3. Step 3: Cross multiply
   611,909x = 1,346,142 × 1,346,142
4. Step 4: Simplify right side
   611,909x = 1,812,098,284,164
5. Step 5: Solve for x
   x = 1,812,098,284,164/611,909
6. Step 6: Final answer
   x = 2,961,385.25