Finding the Third Proportional to 1,322,488 and 1,978,602

Step by Step Solution

1. Step 1: Write the proportion equation
   1,322,488 : 1,978,602 = 1,978,602 : x
2. Step 2: Convert to fraction form
   1,322,488/1,978,602 = 1,978,602/x
3. Step 3: Cross multiply
   1,322,488x = 1,978,602 × 1,978,602
4. Step 4: Simplify right side
   1,322,488x = 3,914,865,874,404
5. Step 5: Solve for x
   x = 3,914,865,874,404/1,322,488
6. Step 6: Final answer
   x = 2,960,227.90