Finding the Third Proportional to 21,276 and 32,490

Step by Step Solution

1. Step 1: Write the proportion equation
   21,276 : 32,490 = 32,490 : x
2. Step 2: Convert to fraction form
   21,276/32,490 = 32,490/x
3. Step 3: Cross multiply
   21,276x = 32,490 × 32,490
4. Step 4: Simplify right side
   21,276x = 1,055,600,100
5. Step 5: Solve for x
   x = 1,055,600,100/21,276
6. Step 6: Final answer
   x = 49,614.59