Finding the Third Proportional to 1,553,220 and 3,322,386

Step by Step Solution

1. Step 1: Write the proportion equation
   1,553,220 : 3,322,386 = 3,322,386 : x
2. Step 2: Convert to fraction form
   1,553,220/3,322,386 = 3,322,386/x
3. Step 3: Cross multiply
   1,553,220x = 3,322,386 × 3,322,386
4. Step 4: Simplify right side
   1,553,220x = 11,038,248,732,996
5. Step 5: Solve for x
   x = 11,038,248,732,996/1,553,220
6. Step 6: Final answer
   x = 7,106,687.23