Finding the Third Proportional to 3,181,370 and 4,818,387

Step by Step Solution

1. Step 1: Write the proportion equation
   3,181,370 : 4,818,387 = 4,818,387 : x
2. Step 2: Convert to fraction form
   3,181,370/4,818,387 = 4,818,387/x
3. Step 3: Cross multiply
   3,181,370x = 4,818,387 × 4,818,387
4. Step 4: Simplify right side
   3,181,370x = 23,216,853,281,769
5. Step 5: Solve for x
   x = 23,216,853,281,769/3,181,370
6. Step 6: Final answer
   x = 7,297,753.26