Finding the Third Proportional to 28,642 and 64,597

Step by Step Solution

1. Step 1: Write the proportion equation
   28,642 : 64,597 = 64,597 : x
2. Step 2: Convert to fraction form
   28,642/64,597 = 64,597/x
3. Step 3: Cross multiply
   28,642x = 64,597 × 64,597
4. Step 4: Simplify right side
   28,642x = 4,172,772,409
5. Step 5: Solve for x
   x = 4,172,772,409/28,642
6. Step 6: Final answer
   x = 145,687.19