Finding the Third Proportional to 407,166.75 and 634,017.38

Step by Step Solution

1. Step 1: Write the proportion equation
   407,166.75 : 634,017.38 = 634,017.38 : x
2. Step 2: Convert to fraction form
   407,166.75/634,017.38 = 634,017.38/x
3. Step 3: Cross multiply
   407,166.75x = 634,017.38 × 634,017.38
4. Step 4: Simplify right side
   407,166.75x = 401,978,031,801.89
5. Step 5: Solve for x
   x = 401,978,031,801.89/407,166.75
6. Step 6: Final answer
   x = 987,256.53