Finding the Third Proportional to 458,340 and 986,890.50

Step by Step Solution

1. Step 1: Write the proportion equation
   458,340 : 986,890.50 = 986,890.50 : x
2. Step 2: Convert to fraction form
   458,340/986,890.50 = 986,890.50/x
3. Step 3: Cross multiply
   458,340x = 986,890.50 × 986,890.50
4. Step 4: Simplify right side
   458,340x = 973,952,858,990.25
5. Step 5: Solve for x
   x = 973,952,858,990.25/458,340
6. Step 6: Final answer
   x = 2,124,957.15