Finding the Third Proportional to 412,920 and 634,881.38

Step by Step Solution

1. Step 1: Write the proportion equation
   412,920 : 634,881.38 = 634,881.38 : x
2. Step 2: Convert to fraction form
   412,920/634,881.38 = 634,881.38/x
3. Step 3: Cross multiply
   412,920x = 634,881.38 × 634,881.38
4. Step 4: Simplify right side
   412,920x = 403,074,360,321.89
5. Step 5: Solve for x
   x = 403,074,360,321.89/412,920
6. Step 6: Final answer
   x = 976,156.06