Finding the Third Proportional to 147,120 and 314,976

Step by Step Solution

1. Step 1: Write the proportion equation
   147,120 : 314,976 = 314,976 : x
2. Step 2: Convert to fraction form
   147,120/314,976 = 314,976/x
3. Step 3: Cross multiply
   147,120x = 314,976 × 314,976
4. Step 4: Simplify right side
   147,120x = 99,209,880,576
5. Step 5: Solve for x
   x = 99,209,880,576/147,120
6. Step 6: Final answer
   x = 674,346.66