Finding the Third Proportional to 152,634 and 319,200

Step by Step Solution

1. Step 1: Write the proportion equation
   152,634 : 319,200 = 319,200 : x
2. Step 2: Convert to fraction form
   152,634/319,200 = 319,200/x
3. Step 3: Cross multiply
   152,634x = 319,200 × 319,200
4. Step 4: Simplify right side
   152,634x = 101,888,640,000
5. Step 5: Solve for x
   x = 101,888,640,000/152,634
6. Step 6: Final answer
   x = 667,535.67