Finding the Third Proportional to 1,627,920 and 3,545,131

Step by Step Solution

1. Step 1: Write the proportion equation
   1,627,920 : 3,545,131 = 3,545,131 : x
2. Step 2: Convert to fraction form
   1,627,920/3,545,131 = 3,545,131/x
3. Step 3: Cross multiply
   1,627,920x = 3,545,131 × 3,545,131
4. Step 4: Simplify right side
   1,627,920x = 12,567,953,807,161
5. Step 5: Solve for x
   x = 12,567,953,807,161/1,627,920
6. Step 6: Final answer
   x = 7,720,252.72