Finding the Third Proportional to 1,620,880 and 3,527,166

Step by Step Solution

1. Step 1: Write the proportion equation
   1,620,880 : 3,527,166 = 3,527,166 : x
2. Step 2: Convert to fraction form
   1,620,880/3,527,166 = 3,527,166/x
3. Step 3: Cross multiply
   1,620,880x = 3,527,166 × 3,527,166
4. Step 4: Simplify right side
   1,620,880x = 12,440,899,991,556
5. Step 5: Solve for x
   x = 12,440,899,991,556/1,620,880
6. Step 6: Final answer
   x = 7,675,398.54