Finding the Third Proportional to 206,088 and 434,314.50

Step by Step Solution

1. Step 1: Write the proportion equation
   206,088 : 434,314.50 = 434,314.50 : x
2. Step 2: Convert to fraction form
   206,088/434,314.50 = 434,314.50/x
3. Step 3: Cross multiply
   206,088x = 434,314.50 × 434,314.50
4. Step 4: Simplify right side
   206,088x = 188,629,084,910.25
5. Step 5: Solve for x
   x = 188,629,084,910.25/206,088
6. Step 6: Final answer
   x = 915,284.17