Finding the Third Proportional to 147,942 and 240,354

Step by Step Solution

1. Step 1: Write the proportion equation
   147,942 : 240,354 = 240,354 : x
2. Step 2: Convert to fraction form
   147,942/240,354 = 240,354/x
3. Step 3: Cross multiply
   147,942x = 240,354 × 240,354
4. Step 4: Simplify right side
   147,942x = 57,770,045,316
5. Step 5: Solve for x
   x = 57,770,045,316/147,942
6. Step 6: Final answer
   x = 390,491.17