Finding the Third Proportional to 611,209 and 1,336,005

Step by Step Solution

1. Step 1: Write the proportion equation
   611,209 : 1,336,005 = 1,336,005 : x
2. Step 2: Convert to fraction form
   611,209/1,336,005 = 1,336,005/x
3. Step 3: Cross multiply
   611,209x = 1,336,005 × 1,336,005
4. Step 4: Simplify right side
   611,209x = 1,784,909,360,025
5. Step 5: Solve for x
   x = 1,784,909,360,025/611,209
6. Step 6: Final answer
   x = 2,920,292.99