Finding the Third Proportional to 4,650,448 and 9,973,574

Step by Step Solution

1. Step 1: Write the proportion equation
   4,650,448 : 9,973,574 = 9,973,574 : x
2. Step 2: Convert to fraction form
   4,650,448/9,973,574 = 9,973,574/x
3. Step 3: Cross multiply
   4,650,448x = 9,973,574 × 9,973,574
4. Step 4: Simplify right side
   4,650,448x = 99,472,178,333,476
5. Step 5: Solve for x
   x = 99,472,178,333,476/4,650,448
6. Step 6: Final answer
   x = 21,389,805.53