Finding the Third Proportional to 1,749,385 and 3,638,430

Step by Step Solution

1. Step 1: Write the proportion equation
   1,749,385 : 3,638,430 = 3,638,430 : x
2. Step 2: Convert to fraction form
   1,749,385/3,638,430 = 3,638,430/x
3. Step 3: Cross multiply
   1,749,385x = 3,638,430 × 3,638,430
4. Step 4: Simplify right side
   1,749,385x = 13,238,172,864,900
5. Step 5: Solve for x
   x = 13,238,172,864,900/1,749,385
6. Step 6: Final answer
   x = 7,567,329.58