Finding the Third Proportional to 1,209,106 and 2,639,792

Step by Step Solution

1. Step 1: Write the proportion equation
   1,209,106 : 2,639,792 = 2,639,792 : x
2. Step 2: Convert to fraction form
   1,209,106/2,639,792 = 2,639,792/x
3. Step 3: Cross multiply
   1,209,106x = 2,639,792 × 2,639,792
4. Step 4: Simplify right side
   1,209,106x = 6,968,501,803,264
5. Step 5: Solve for x
   x = 6,968,501,803,264/1,209,106
6. Step 6: Final answer
   x = 5,763,350.61