Finding the Third Proportional to 431,182 and 907,056

Step by Step Solution

1. Step 1: Write the proportion equation
   431,182 : 907,056 = 907,056 : x
2. Step 2: Convert to fraction form
   431,182/907,056 = 907,056/x
3. Step 3: Cross multiply
   431,182x = 907,056 × 907,056
4. Step 4: Simplify right side
   431,182x = 822,750,587,136
5. Step 5: Solve for x
   x = 822,750,587,136/431,182
6. Step 6: Final answer
   x = 1,908,128.32