Finding the Third Proportional to 431,199 and 907,084

Step by Step Solution

1. Step 1: Write the proportion equation
   431,199 : 907,084 = 907,084 : x
2. Step 2: Convert to fraction form
   431,199/907,084 = 907,084/x
3. Step 3: Cross multiply
   431,199x = 907,084 × 907,084
4. Step 4: Simplify right side
   431,199x = 822,801,383,056
5. Step 5: Solve for x
   x = 822,801,383,056/431,199
6. Step 6: Final answer
   x = 1,908,170.90