Finding the Third Proportional to 87,830.50 and 207,262

Step by Step Solution

1. Step 1: Write the proportion equation
   87,830.50 : 207,262 = 207,262 : x
2. Step 2: Convert to fraction form
   87,830.50/207,262 = 207,262/x
3. Step 3: Cross multiply
   87,830.50x = 207,262 × 207,262
4. Step 4: Simplify right side
   87,830.50x = 42,957,536,644
5. Step 5: Solve for x
   x = 42,957,536,644/87,830.50
6. Step 6: Final answer
   x = 489,095.89