Finding the Third Proportional to 2,147,398 and 4,631,047

Step by Step Solution

1. Step 1: Write the proportion equation
   2,147,398 : 4,631,047 = 4,631,047 : x
2. Step 2: Convert to fraction form
   2,147,398/4,631,047 = 4,631,047/x
3. Step 3: Cross multiply
   2,147,398x = 4,631,047 × 4,631,047
4. Step 4: Simplify right side
   2,147,398x = 21,446,596,316,209
5. Step 5: Solve for x
   x = 21,446,596,316,209/2,147,398
6. Step 6: Final answer
   x = 9,987,247.97