Finding the Third Proportional to 30,522 and 64,986

Step by Step Solution

1. Step 1: Write the proportion equation
   30,522 : 64,986 = 64,986 : x
2. Step 2: Convert to fraction form
   30,522/64,986 = 64,986/x
3. Step 3: Cross multiply
   30,522x = 64,986 × 64,986
4. Step 4: Simplify right side
   30,522x = 4,223,180,196
5. Step 5: Solve for x
   x = 4,223,180,196/30,522
6. Step 6: Final answer
   x = 138,365.12