Finding the Third Proportional to 1,742,394 and 2,639,862

Step by Step Solution

1. Step 1: Write the proportion equation
   1,742,394 : 2,639,862 = 2,639,862 : x
2. Step 2: Convert to fraction form
   1,742,394/2,639,862 = 2,639,862/x
3. Step 3: Cross multiply
   1,742,394x = 2,639,862 × 2,639,862
4. Step 4: Simplify right side
   1,742,394x = 6,968,871,379,044
5. Step 5: Solve for x
   x = 6,968,871,379,044/1,742,394
6. Step 6: Final answer
   x = 3,999,595.60