Finding the Third Proportional to 151,869.50 and 351,580

Step by Step Solution

1. Step 1: Write the proportion equation
   151,869.50 : 351,580 = 351,580 : x
2. Step 2: Convert to fraction form
   151,869.50/351,580 = 351,580/x
3. Step 3: Cross multiply
   151,869.50x = 351,580 × 351,580
4. Step 4: Simplify right side
   151,869.50x = 123,608,496,400
5. Step 5: Solve for x
   x = 123,608,496,400/151,869.50
6. Step 6: Final answer
   x = 813,912.58