Finding the Third Proportional to 28,470 and 42,573

Step by Step Solution

1. Step 1: Write the proportion equation
   28,470 : 42,573 = 42,573 : x
2. Step 2: Convert to fraction form
   28,470/42,573 = 42,573/x
3. Step 3: Cross multiply
   28,470x = 42,573 × 42,573
4. Step 4: Simplify right side
   28,470x = 1,812,460,329
5. Step 5: Solve for x
   x = 1,812,460,329/28,470
6. Step 6: Final answer
   x = 63,662.11