Finding the Third Proportional to 119,211 and 258,925.50

Step by Step Solution

1. Step 1: Write the proportion equation
   119,211 : 258,925.50 = 258,925.50 : x
2. Step 2: Convert to fraction form
   119,211/258,925.50 = 258,925.50/x
3. Step 3: Cross multiply
   119,211x = 258,925.50 × 258,925.50
4. Step 4: Simplify right side
   119,211x = 67,042,414,550.25
5. Step 5: Solve for x
   x = 67,042,414,550.25/119,211
6. Step 6: Final answer
   x = 562,384.47