Finding the Third Proportional to 1,749,387 and 3,638,434

Step by Step Solution

1. Step 1: Write the proportion equation
   1,749,387 : 3,638,434 = 3,638,434 : x
2. Step 2: Convert to fraction form
   1,749,387/3,638,434 = 3,638,434/x
3. Step 3: Cross multiply
   1,749,387x = 3,638,434 × 3,638,434
4. Step 4: Simplify right side
   1,749,387x = 13,238,201,972,356
5. Step 5: Solve for x
   x = 13,238,201,972,356/1,749,387
6. Step 6: Final answer
   x = 7,567,337.57