Finding the Third Proportional to 576,440 and 920,871.50

Step by Step Solution

1. Step 1: Write the proportion equation
   576,440 : 920,871.50 = 920,871.50 : x
2. Step 2: Convert to fraction form
   576,440/920,871.50 = 920,871.50/x
3. Step 3: Cross multiply
   576,440x = 920,871.50 × 920,871.50
4. Step 4: Simplify right side
   576,440x = 848,004,319,512.25
5. Step 5: Solve for x
   x = 848,004,319,512.25/576,440
6. Step 6: Final answer
   x = 1,471,105.96