Finding the Third Proportional to 427,330 and 911,866.50

Step by Step Solution

1. Step 1: Write the proportion equation
   427,330 : 911,866.50 = 911,866.50 : x
2. Step 2: Convert to fraction form
   427,330/911,866.50 = 911,866.50/x
3. Step 3: Cross multiply
   427,330x = 911,866.50 × 911,866.50
4. Step 4: Simplify right side
   427,330x = 831,500,513,822.25
5. Step 5: Solve for x
   x = 831,500,513,822.25/427,330
6. Step 6: Final answer
   x = 1,945,804.21