Finding the Third Proportional to 1,369,495 and 2,128,999

Step by Step Solution

1. Step 1: Write the proportion equation
   1,369,495 : 2,128,999 = 2,128,999 : x
2. Step 2: Convert to fraction form
   1,369,495/2,128,999 = 2,128,999/x
3. Step 3: Cross multiply
   1,369,495x = 2,128,999 × 2,128,999
4. Step 4: Simplify right side
   1,369,495x = 4,532,636,742,001
5. Step 5: Solve for x
   x = 4,532,636,742,001/1,369,495
6. Step 6: Final answer
   x = 3,309,713.98