Finding the Third Proportional to 1,620,281 and 3,489,862

Step by Step Solution

1. Step 1: Write the proportion equation
   1,620,281 : 3,489,862 = 3,489,862 : x
2. Step 2: Convert to fraction form
   1,620,281/3,489,862 = 3,489,862/x
3. Step 3: Cross multiply
   1,620,281x = 3,489,862 × 3,489,862
4. Step 4: Simplify right side
   1,620,281x = 12,179,136,779,044
5. Step 5: Solve for x
   x = 12,179,136,779,044/1,620,281
6. Step 6: Final answer
   x = 7,516,681.85