Finding the Third Proportional to 1,396,970 and 2,136,056

Step by Step Solution

1. Step 1: Write the proportion equation
   1,396,970 : 2,136,056 = 2,136,056 : x
2. Step 2: Convert to fraction form
   1,396,970/2,136,056 = 2,136,056/x
3. Step 3: Cross multiply
   1,396,970x = 2,136,056 × 2,136,056
4. Step 4: Simplify right side
   1,396,970x = 4,562,735,235,136
5. Step 5: Solve for x
   x = 4,562,735,235,136/1,396,970
6. Step 6: Final answer
   x = 3,266,165.51