Finding the Third Proportional to 554,982 and 830,209.50

Step by Step Solution

1. Step 1: Write the proportion equation
   554,982 : 830,209.50 = 830,209.50 : x
2. Step 2: Convert to fraction form
   554,982/830,209.50 = 830,209.50/x
3. Step 3: Cross multiply
   554,982x = 830,209.50 × 830,209.50
4. Step 4: Simplify right side
   554,982x = 689,247,813,890.25
5. Step 5: Solve for x
   x = 689,247,813,890.25/554,982
6. Step 6: Final answer
   x = 1,241,928.23