Finding the Third Proportional to 69,272 and 147,760

Step by Step Solution

1. Step 1: Write the proportion equation
   69,272 : 147,760 = 147,760 : x
2. Step 2: Convert to fraction form
   69,272/147,760 = 147,760/x
3. Step 3: Cross multiply
   69,272x = 147,760 × 147,760
4. Step 4: Simplify right side
   69,272x = 21,833,017,600
5. Step 5: Solve for x
   x = 21,833,017,600/69,272
6. Step 6: Final answer
   x = 315,178.10