Finding the Third Proportional to 45,510 and 99,279

Step by Step Solution

1. Step 1: Write the proportion equation
   45,510 : 99,279 = 99,279 : x
2. Step 2: Convert to fraction form
   45,510/99,279 = 99,279/x
3. Step 3: Cross multiply
   45,510x = 99,279 × 99,279
4. Step 4: Simplify right side
   45,510x = 9,856,319,841
5. Step 5: Solve for x
   x = 9,856,319,841/45,510
6. Step 6: Final answer
   x = 216,574.82