Finding the Third Proportional to 155,490 and 333,091.50

Step by Step Solution

1. Step 1: Write the proportion equation
   155,490 : 333,091.50 = 333,091.50 : x
2. Step 2: Convert to fraction form
   155,490/333,091.50 = 333,091.50/x
3. Step 3: Cross multiply
   155,490x = 333,091.50 × 333,091.50
4. Step 4: Simplify right side
   155,490x = 110,949,947,372.25
5. Step 5: Solve for x
   x = 110,949,947,372.25/155,490
6. Step 6: Final answer
   x = 713,550.37