Finding the Third Proportional to 28,178 and 60,354

Step by Step Solution

1. Step 1: Write the proportion equation
   28,178 : 60,354 = 60,354 : x
2. Step 2: Convert to fraction form
   28,178/60,354 = 60,354/x
3. Step 3: Cross multiply
   28,178x = 60,354 × 60,354
4. Step 4: Simplify right side
   28,178x = 3,642,605,316
5. Step 5: Solve for x
   x = 3,642,605,316/28,178
6. Step 6: Final answer
   x = 129,271.25