Finding the Third Proportional to 1,221,616 and 1,902,222

Step by Step Solution

1. Step 1: Write the proportion equation
   1,221,616 : 1,902,222 = 1,902,222 : x
2. Step 2: Convert to fraction form
   1,221,616/1,902,222 = 1,902,222/x
3. Step 3: Cross multiply
   1,221,616x = 1,902,222 × 1,902,222
4. Step 4: Simplify right side
   1,221,616x = 3,618,448,537,284
5. Step 5: Solve for x
   x = 3,618,448,537,284/1,221,616
6. Step 6: Final answer
   x = 2,962,017.96