Finding the Third Proportional to 156,920 and 335,384

Step by Step Solution

1. Step 1: Write the proportion equation
   156,920 : 335,384 = 335,384 : x
2. Step 2: Convert to fraction form
   156,920/335,384 = 335,384/x
3. Step 3: Cross multiply
   156,920x = 335,384 × 335,384
4. Step 4: Simplify right side
   156,920x = 112,482,427,456
5. Step 5: Solve for x
   x = 112,482,427,456/156,920
6. Step 6: Final answer
   x = 716,813.84