Finding the Third Proportional to 98,805.25 and 212,596

Step by Step Solution

1. Step 1: Write the proportion equation
   98,805.25 : 212,596 = 212,596 : x
2. Step 2: Convert to fraction form
   98,805.25/212,596 = 212,596/x
3. Step 3: Cross multiply
   98,805.25x = 212,596 × 212,596
4. Step 4: Simplify right side
   98,805.25x = 45,197,059,216
5. Step 5: Solve for x
   x = 45,197,059,216/98,805.25
6. Step 6: Final answer
   x = 457,435.81