Finding the Third Proportional to 1,620,899 and 3,527,206

Step by Step Solution

1. Step 1: Write the proportion equation
   1,620,899 : 3,527,206 = 3,527,206 : x
2. Step 2: Convert to fraction form
   1,620,899/3,527,206 = 3,527,206/x
3. Step 3: Cross multiply
   1,620,899x = 3,527,206 × 3,527,206
4. Step 4: Simplify right side
   1,620,899x = 12,441,182,166,436
5. Step 5: Solve for x
   x = 12,441,182,166,436/1,620,899
6. Step 6: Final answer
   x = 7,675,482.66