Finding the Third Proportional to 3,598,143 and 5,145,387

Step by Step Solution

1. Step 1: Write the proportion equation
   3,598,143 : 5,145,387 = 5,145,387 : x
2. Step 2: Convert to fraction form
   3,598,143/5,145,387 = 5,145,387/x
3. Step 3: Cross multiply
   3,598,143x = 5,145,387 × 5,145,387
4. Step 4: Simplify right side
   3,598,143x = 26,475,007,379,769
5. Step 5: Solve for x
   x = 26,475,007,379,769/3,598,143
6. Step 6: Final answer
   x = 7,357,964.20