Finding the Third Proportional to 10,398,372 and 21,111,674

Step by Step Solution

1. Step 1: Write the proportion equation
   10,398,372 : 21,111,674 = 21,111,674 : x
2. Step 2: Convert to fraction form
   10,398,372/21,111,674 = 21,111,674/x
3. Step 3: Cross multiply
   10,398,372x = 21,111,674 × 21,111,674
4. Step 4: Simplify right side
   10,398,372x = 445,702,779,082,276
5. Step 5: Solve for x
   x = 445,702,779,082,276/10,398,372
6. Step 6: Final answer
   x = 42,862,746.12