Finding the Third Proportional to 1,645,356 and 3,668,808

Step by Step Solution

1. Step 1: Write the proportion equation
   1,645,356 : 3,668,808 = 3,668,808 : x
2. Step 2: Convert to fraction form
   1,645,356/3,668,808 = 3,668,808/x
3. Step 3: Cross multiply
   1,645,356x = 3,668,808 × 3,668,808
4. Step 4: Simplify right side
   1,645,356x = 13,460,152,140,864
5. Step 5: Solve for x
   x = 13,460,152,140,864/1,645,356
6. Step 6: Final answer
   x = 8,180,692.90