Finding the Third Proportional to 296,781 and 699,886.50

Step by Step Solution

1. Step 1: Write the proportion equation
   296,781 : 699,886.50 = 699,886.50 : x
2. Step 2: Convert to fraction form
   296,781/699,886.50 = 699,886.50/x
3. Step 3: Cross multiply
   296,781x = 699,886.50 × 699,886.50
4. Step 4: Simplify right side
   296,781x = 489,841,112,882.25
5. Step 5: Solve for x
   x = 489,841,112,882.25/296,781
6. Step 6: Final answer
   x = 1,650,513.72