Finding the Third Proportional to 69,372 and 147,384

Step by Step Solution

1. Step 1: Write the proportion equation
   69,372 : 147,384 = 147,384 : x
2. Step 2: Convert to fraction form
   69,372/147,384 = 147,384/x
3. Step 3: Cross multiply
   69,372x = 147,384 × 147,384
4. Step 4: Simplify right side
   69,372x = 21,722,043,456
5. Step 5: Solve for x
   x = 21,722,043,456/69,372
6. Step 6: Final answer
   x = 313,124.08