Finding the Third Proportional to 3,601,992 and 6,405,342

Step by Step Solution

1. Step 1: Write the proportion equation
   3,601,992 : 6,405,342 = 6,405,342 : x
2. Step 2: Convert to fraction form
   3,601,992/6,405,342 = 6,405,342/x
3. Step 3: Cross multiply
   3,601,992x = 6,405,342 × 6,405,342
4. Step 4: Simplify right side
   3,601,992x = 41,028,406,136,964
5. Step 5: Solve for x
   x = 41,028,406,136,964/3,601,992
6. Step 6: Final answer
   x = 11,390,476.75