Finding the Third Proportional to 15,374.50 and 31,469

Step by Step Solution

1. Step 1: Write the proportion equation
   15,374.50 : 31,469 = 31,469 : x
2. Step 2: Convert to fraction form
   15,374.50/31,469 = 31,469/x
3. Step 3: Cross multiply
   15,374.50x = 31,469 × 31,469
4. Step 4: Simplify right side
   15,374.50x = 990,297,961
5. Step 5: Solve for x
   x = 990,297,961/15,374.50
6. Step 6: Final answer
   x = 64,411.72