Finding the Third Proportional to 438,212.25 and 662,058

Step by Step Solution

1. Step 1: Write the proportion equation
   438,212.25 : 662,058 = 662,058 : x
2. Step 2: Convert to fraction form
   438,212.25/662,058 = 662,058/x
3. Step 3: Cross multiply
   438,212.25x = 662,058 × 662,058
4. Step 4: Simplify right side
   438,212.25x = 438,320,795,364
5. Step 5: Solve for x
   x = 438,320,795,364/438,212.25
6. Step 6: Final answer
   x = 1,000,247.70