Finding the Third Proportional to 306,054 and 430,228.50

Step by Step Solution

1. Step 1: Write the proportion equation
   306,054 : 430,228.50 = 430,228.50 : x
2. Step 2: Convert to fraction form
   306,054/430,228.50 = 430,228.50/x
3. Step 3: Cross multiply
   306,054x = 430,228.50 × 430,228.50
4. Step 4: Simplify right side
   306,054x = 185,096,562,212.25
5. Step 5: Solve for x
   x = 185,096,562,212.25/306,054
6. Step 6: Final answer
   x = 604,784.00