Finding the Third Proportional to 13,812 and 21,607.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,812 : 21,607.50 = 21,607.50 : x
2. Step 2: Convert to fraction form
   13,812/21,607.50 = 21,607.50/x
3. Step 3: Cross multiply
   13,812x = 21,607.50 × 21,607.50
4. Step 4: Simplify right side
   13,812x = 466,884,056.25
5. Step 5: Solve for x
   x = 466,884,056.25/13,812
6. Step 6: Final answer
   x = 33,802.78