Finding the Third Proportional to 28,160 and 63,488

Step by Step Solution

1. Step 1: Write the proportion equation
   28,160 : 63,488 = 63,488 : x
2. Step 2: Convert to fraction form
   28,160/63,488 = 63,488/x
3. Step 3: Cross multiply
   28,160x = 63,488 × 63,488
4. Step 4: Simplify right side
   28,160x = 4,030,726,144
5. Step 5: Solve for x
   x = 4,030,726,144/28,160
6. Step 6: Final answer
   x = 143,136.58