Finding the Third Proportional to 758,438 and 1,628,412

Step by Step Solution

1. Step 1: Write the proportion equation
   758,438 : 1,628,412 = 1,628,412 : x
2. Step 2: Convert to fraction form
   758,438/1,628,412 = 1,628,412/x
3. Step 3: Cross multiply
   758,438x = 1,628,412 × 1,628,412
4. Step 4: Simplify right side
   758,438x = 2,651,725,641,744
5. Step 5: Solve for x
   x = 2,651,725,641,744/758,438
6. Step 6: Final answer
   x = 3,496,298.50