Finding the Third Proportional to 1,345,502 and 2,139,633

Step by Step Solution

1. Step 1: Write the proportion equation
   1,345,502 : 2,139,633 = 2,139,633 : x
2. Step 2: Convert to fraction form
   1,345,502/2,139,633 = 2,139,633/x
3. Step 3: Cross multiply
   1,345,502x = 2,139,633 × 2,139,633
4. Step 4: Simplify right side
   1,345,502x = 4,578,029,374,689
5. Step 5: Solve for x
   x = 4,578,029,374,689/1,345,502
6. Step 6: Final answer
   x = 3,402,469.39