Finding the Third Proportional to 431,196 and 907,074

Step by Step Solution

1. Step 1: Write the proportion equation
   431,196 : 907,074 = 907,074 : x
2. Step 2: Convert to fraction form
   431,196/907,074 = 907,074/x
3. Step 3: Cross multiply
   431,196x = 907,074 × 907,074
4. Step 4: Simplify right side
   431,196x = 822,783,241,476
5. Step 5: Solve for x
   x = 822,783,241,476/431,196
6. Step 6: Final answer
   x = 1,908,142.10