Finding the Third Proportional to 864,160 and 1,267,056

Step by Step Solution

1. Step 1: Write the proportion equation
   864,160 : 1,267,056 = 1,267,056 : x
2. Step 2: Convert to fraction form
   864,160/1,267,056 = 1,267,056/x
3. Step 3: Cross multiply
   864,160x = 1,267,056 × 1,267,056
4. Step 4: Simplify right side
   864,160x = 1,605,430,907,136
5. Step 5: Solve for x
   x = 1,605,430,907,136/864,160
6. Step 6: Final answer
   x = 1,857,793.59