Finding the Third Proportional to 412,952 and 907,072

Step by Step Solution

1. Step 1: Write the proportion equation
   412,952 : 907,072 = 907,072 : x
2. Step 2: Convert to fraction form
   412,952/907,072 = 907,072/x
3. Step 3: Cross multiply
   412,952x = 907,072 × 907,072
4. Step 4: Simplify right side
   412,952x = 822,779,613,184
5. Step 5: Solve for x
   x = 822,779,613,184/412,952
6. Step 6: Final answer
   x = 1,992,434.02