Finding the Third Proportional to 31,272 and 45,732

Step by Step Solution

1. Step 1: Write the proportion equation
   31,272 : 45,732 = 45,732 : x
2. Step 2: Convert to fraction form
   31,272/45,732 = 45,732/x
3. Step 3: Cross multiply
   31,272x = 45,732 × 45,732
4. Step 4: Simplify right side
   31,272x = 2,091,415,824
5. Step 5: Solve for x
   x = 2,091,415,824/31,272
6. Step 6: Final answer
   x = 66,878.22