Finding the Third Proportional to 606,411 and 1,320,417

Step by Step Solution

1. Step 1: Write the proportion equation
   606,411 : 1,320,417 = 1,320,417 : x
2. Step 2: Convert to fraction form
   606,411/1,320,417 = 1,320,417/x
3. Step 3: Cross multiply
   606,411x = 1,320,417 × 1,320,417
4. Step 4: Simplify right side
   606,411x = 1,743,501,053,889
5. Step 5: Solve for x
   x = 1,743,501,053,889/606,411
6. Step 6: Final answer
   x = 2,875,114.49