Finding the Third Proportional to 613,431 and 931,182

Step by Step Solution

1. Step 1: Write the proportion equation
   613,431 : 931,182 = 931,182 : x
2. Step 2: Convert to fraction form
   613,431/931,182 = 931,182/x
3. Step 3: Cross multiply
   613,431x = 931,182 × 931,182
4. Step 4: Simplify right side
   613,431x = 867,099,917,124
5. Step 5: Solve for x
   x = 867,099,917,124/613,431
6. Step 6: Final answer
   x = 1,413,524.78