Finding the Third Proportional to 14,688.84 and 21,404.88

Step by Step Solution

1. Step 1: Write the proportion equation
   14,688.84 : 21,404.88 = 21,404.88 : x
2. Step 2: Convert to fraction form
   14,688.84/21,404.88 = 21,404.88/x
3. Step 3: Cross multiply
   14,688.84x = 21,404.88 × 21,404.88
4. Step 4: Simplify right side
   14,688.84x = 458,169,008.22
5. Step 5: Solve for x
   x = 458,169,008.22/14,688.84
6. Step 6: Final answer
   x = 31,191.63