Finding the Third Proportional to 14,603.50 and 31,428.50

Step by Step Solution

1. Step 1: Write the proportion equation
   14,603.50 : 31,428.50 = 31,428.50 : x
2. Step 2: Convert to fraction form
   14,603.50/31,428.50 = 31,428.50/x
3. Step 3: Cross multiply
   14,603.50x = 31,428.50 × 31,428.50
4. Step 4: Simplify right side
   14,603.50x = 987,750,612.25
5. Step 5: Solve for x
   x = 987,750,612.25/14,603.50
6. Step 6: Final answer
   x = 67,637.94