Finding the Third Proportional to 4,621,584 and 9,973,898

Step by Step Solution

1. Step 1: Write the proportion equation
   4,621,584 : 9,973,898 = 9,973,898 : x
2. Step 2: Convert to fraction form
   4,621,584/9,973,898 = 9,973,898/x
3. Step 3: Cross multiply
   4,621,584x = 9,973,898 × 9,973,898
4. Step 4: Simplify right side
   4,621,584x = 99,478,641,314,404
5. Step 5: Solve for x
   x = 99,478,641,314,404/4,621,584
6. Step 6: Final answer
   x = 21,524,793.52