Finding the Third Proportional to 1,395,648 and 2,213,588

Step by Step Solution

1. Step 1: Write the proportion equation
   1,395,648 : 2,213,588 = 2,213,588 : x
2. Step 2: Convert to fraction form
   1,395,648/2,213,588 = 2,213,588/x
3. Step 3: Cross multiply
   1,395,648x = 2,213,588 × 2,213,588
4. Step 4: Simplify right side
   1,395,648x = 4,899,971,833,744
5. Step 5: Solve for x
   x = 4,899,971,833,744/1,395,648
6. Step 6: Final answer
   x = 3,510,893.75