Finding the Third Proportional to 1,620,891 and 3,527,190

Step by Step Solution

1. Step 1: Write the proportion equation
   1,620,891 : 3,527,190 = 3,527,190 : x
2. Step 2: Convert to fraction form
   1,620,891/3,527,190 = 3,527,190/x
3. Step 3: Cross multiply
   1,620,891x = 3,527,190 × 3,527,190
4. Step 4: Simplify right side
   1,620,891x = 12,441,069,296,100
5. Step 5: Solve for x
   x = 12,441,069,296,100/1,620,891
6. Step 6: Final answer
   x = 7,675,450.91