Finding the Third Proportional to 158,320 and 336,070

Step by Step Solution

1. Step 1: Write the proportion equation
   158,320 : 336,070 = 336,070 : x
2. Step 2: Convert to fraction form
   158,320/336,070 = 336,070/x
3. Step 3: Cross multiply
   158,320x = 336,070 × 336,070
4. Step 4: Simplify right side
   158,320x = 112,943,044,900
5. Step 5: Solve for x
   x = 112,943,044,900/158,320
6. Step 6: Final answer
   x = 713,384.57