Finding the Third Proportional to 275,930 and 370,810

Step by Step Solution

1. Step 1: Write the proportion equation
   275,930 : 370,810 = 370,810 : x
2. Step 2: Convert to fraction form
   275,930/370,810 = 370,810/x
3. Step 3: Cross multiply
   275,930x = 370,810 × 370,810
4. Step 4: Simplify right side
   275,930x = 137,500,056,100
5. Step 5: Solve for x
   x = 137,500,056,100/275,930
6. Step 6: Final answer
   x = 498,314.99