Finding the Third Proportional to 1,663,736 and 3,406,168

Step by Step Solution

1. Step 1: Write the proportion equation
   1,663,736 : 3,406,168 = 3,406,168 : x
2. Step 2: Convert to fraction form
   1,663,736/3,406,168 = 3,406,168/x
3. Step 3: Cross multiply
   1,663,736x = 3,406,168 × 3,406,168
4. Step 4: Simplify right side
   1,663,736x = 11,601,980,444,224
5. Step 5: Solve for x
   x = 11,601,980,444,224/1,663,736
6. Step 6: Final answer
   x = 6,973,450.38