Finding the Third Proportional to 148,816.50 and 351,228

Step by Step Solution

1. Step 1: Write the proportion equation
   148,816.50 : 351,228 = 351,228 : x
2. Step 2: Convert to fraction form
   148,816.50/351,228 = 351,228/x
3. Step 3: Cross multiply
   148,816.50x = 351,228 × 351,228
4. Step 4: Simplify right side
   148,816.50x = 123,361,107,984
5. Step 5: Solve for x
   x = 123,361,107,984/148,816.50
6. Step 6: Final answer
   x = 828,947.78