Finding the Third Proportional to 30,338 and 45,931

Step by Step Solution

1. Step 1: Write the proportion equation
   30,338 : 45,931 = 45,931 : x
2. Step 2: Convert to fraction form
   30,338/45,931 = 45,931/x
3. Step 3: Cross multiply
   30,338x = 45,931 × 45,931
4. Step 4: Simplify right side
   30,338x = 2,109,656,761
5. Step 5: Solve for x
   x = 2,109,656,761/30,338
6. Step 6: Final answer
   x = 69,538.43