Finding the Third Proportional to 1,359,136 and 2,159,238

Step by Step Solution

1. Step 1: Write the proportion equation
   1,359,136 : 2,159,238 = 2,159,238 : x
2. Step 2: Convert to fraction form
   1,359,136/2,159,238 = 2,159,238/x
3. Step 3: Cross multiply
   1,359,136x = 2,159,238 × 2,159,238
4. Step 4: Simplify right side
   1,359,136x = 4,662,308,740,644
5. Step 5: Solve for x
   x = 4,662,308,740,644/1,359,136
6. Step 6: Final answer
   x = 3,430,347.47