Finding the Third Proportional to 1,647,358 and 3,609,644

Step by Step Solution

1. Step 1: Write the proportion equation
   1,647,358 : 3,609,644 = 3,609,644 : x
2. Step 2: Convert to fraction form
   1,647,358/3,609,644 = 3,609,644/x
3. Step 3: Cross multiply
   1,647,358x = 3,609,644 × 3,609,644
4. Step 4: Simplify right side
   1,647,358x = 13,029,529,806,736
5. Step 5: Solve for x
   x = 13,029,529,806,736/1,647,358
6. Step 6: Final answer
   x = 7,909,349.28