Finding the Third Proportional to 431,175 and 907,042

Step by Step Solution

1. Step 1: Write the proportion equation
   431,175 : 907,042 = 907,042 : x
2. Step 2: Convert to fraction form
   431,175/907,042 = 907,042/x
3. Step 3: Cross multiply
   431,175x = 907,042 × 907,042
4. Step 4: Simplify right side
   431,175x = 822,725,189,764
5. Step 5: Solve for x
   x = 822,725,189,764/431,175
6. Step 6: Final answer
   x = 1,908,100.40