Finding the Third Proportional to 38,897 and 42,907

Step by Step Solution

1. Step 1: Write the proportion equation
   38,897 : 42,907 = 42,907 : x
2. Step 2: Convert to fraction form
   38,897/42,907 = 42,907/x
3. Step 3: Cross multiply
   38,897x = 42,907 × 42,907
4. Step 4: Simplify right side
   38,897x = 1,841,010,649
5. Step 5: Solve for x
   x = 1,841,010,649/38,897
6. Step 6: Final answer
   x = 47,330.40