Finding the Third Proportional to 28,749 and 42,945

Step by Step Solution

1. Step 1: Write the proportion equation
   28,749 : 42,945 = 42,945 : x
2. Step 2: Convert to fraction form
   28,749/42,945 = 42,945/x
3. Step 3: Cross multiply
   28,749x = 42,945 × 42,945
4. Step 4: Simplify right side
   28,749x = 1,844,273,025
5. Step 5: Solve for x
   x = 1,844,273,025/28,749
6. Step 6: Final answer
   x = 64,150.86