Finding the Third Proportional to 1,620,909 and 3,527,226

Step by Step Solution

1. Step 1: Write the proportion equation
   1,620,909 : 3,527,226 = 3,527,226 : x
2. Step 2: Convert to fraction form
   1,620,909/3,527,226 = 3,527,226/x
3. Step 3: Cross multiply
   1,620,909x = 3,527,226 × 3,527,226
4. Step 4: Simplify right side
   1,620,909x = 12,441,323,255,076
5. Step 5: Solve for x
   x = 12,441,323,255,076/1,620,909
6. Step 6: Final answer
   x = 7,675,522.35