Finding the Third Proportional to 431,146 and 906,942

Step by Step Solution

1. Step 1: Write the proportion equation
   431,146 : 906,942 = 906,942 : x
2. Step 2: Convert to fraction form
   431,146/906,942 = 906,942/x
3. Step 3: Cross multiply
   431,146x = 906,942 × 906,942
4. Step 4: Simplify right side
   431,146x = 822,543,791,364
5. Step 5: Solve for x
   x = 822,543,791,364/431,146
6. Step 6: Final answer
   x = 1,907,808.01