Finding the Third Proportional to 644,356 and 1,516,042

Step by Step Solution

1. Step 1: Write the proportion equation
   644,356 : 1,516,042 = 1,516,042 : x
2. Step 2: Convert to fraction form
   644,356/1,516,042 = 1,516,042/x
3. Step 3: Cross multiply
   644,356x = 1,516,042 × 1,516,042
4. Step 4: Simplify right side
   644,356x = 2,298,383,345,764
5. Step 5: Solve for x
   x = 2,298,383,345,764/644,356
6. Step 6: Final answer
   x = 3,566,946.45