Finding the Third Proportional to 1,620,980 and 3,527,380

Step by Step Solution

1. Step 1: Write the proportion equation
   1,620,980 : 3,527,380 = 3,527,380 : x
2. Step 2: Convert to fraction form
   1,620,980/3,527,380 = 3,527,380/x
3. Step 3: Cross multiply
   1,620,980x = 3,527,380 × 3,527,380
4. Step 4: Simplify right side
   1,620,980x = 12,442,409,664,400
5. Step 5: Solve for x
   x = 12,442,409,664,400/1,620,980
6. Step 6: Final answer
   x = 7,675,856.37