Finding the Third Proportional to 4,659,798 and 9,967,428

Step by Step Solution

1. Step 1: Write the proportion equation
   4,659,798 : 9,967,428 = 9,967,428 : x
2. Step 2: Convert to fraction form
   4,659,798/9,967,428 = 9,967,428/x
3. Step 3: Cross multiply
   4,659,798x = 9,967,428 × 9,967,428
4. Step 4: Simplify right side
   4,659,798x = 99,349,620,935,184
5. Step 5: Solve for x
   x = 99,349,620,935,184/4,659,798
6. Step 6: Final answer
   x = 21,320,585.34