Finding the Third Proportional to 155,994 and 319,380

Step by Step Solution

1. Step 1: Write the proportion equation
   155,994 : 319,380 = 319,380 : x
2. Step 2: Convert to fraction form
   155,994/319,380 = 319,380/x
3. Step 3: Cross multiply
   155,994x = 319,380 × 319,380
4. Step 4: Simplify right side
   155,994x = 102,003,584,400
5. Step 5: Solve for x
   x = 102,003,584,400/155,994
6. Step 6: Final answer
   x = 653,894.28