Finding the Third Proportional to 5,902,487 and 8,684,944

Step by Step Solution

1. Step 1: Write the proportion equation
   5,902,487 : 8,684,944 = 8,684,944 : x
2. Step 2: Convert to fraction form
   5,902,487/8,684,944 = 8,684,944/x
3. Step 3: Cross multiply
   5,902,487x = 8,684,944 × 8,684,944
4. Step 4: Simplify right side
   5,902,487x = 75,428,252,283,136
5. Step 5: Solve for x
   x = 75,428,252,283,136/5,902,487
6. Step 6: Final answer
   x = 12,779,062.84