Finding the Third Proportional to 1,624,346 and 2,389,431

Step by Step Solution

1. Step 1: Write the proportion equation
   1,624,346 : 2,389,431 = 2,389,431 : x
2. Step 2: Convert to fraction form
   1,624,346/2,389,431 = 2,389,431/x
3. Step 3: Cross multiply
   1,624,346x = 2,389,431 × 2,389,431
4. Step 4: Simplify right side
   1,624,346x = 5,709,380,503,761
5. Step 5: Solve for x
   x = 5,709,380,503,761/1,624,346
6. Step 6: Final answer
   x = 3,514,879.53