Finding the Third Proportional to 613,403 and 931,142

Step by Step Solution

1. Step 1: Write the proportion equation
   613,403 : 931,142 = 931,142 : x
2. Step 2: Convert to fraction form
   613,403/931,142 = 931,142/x
3. Step 3: Cross multiply
   613,403x = 931,142 × 931,142
4. Step 4: Simplify right side
   613,403x = 867,025,424,164
5. Step 5: Solve for x
   x = 867,025,424,164/613,403
6. Step 6: Final answer
   x = 1,413,467.86