Finding the Third Proportional to 42,556 and 67,354

Step by Step Solution

1. Step 1: Write the proportion equation
   42,556 : 67,354 = 67,354 : x
2. Step 2: Convert to fraction form
   42,556/67,354 = 67,354/x
3. Step 3: Cross multiply
   42,556x = 67,354 × 67,354
4. Step 4: Simplify right side
   42,556x = 4,536,561,316
5. Step 5: Solve for x
   x = 4,536,561,316/42,556
6. Step 6: Final answer
   x = 106,602.16