Finding the Third Proportional to 9,759,636 and 21,199,354

Step by Step Solution

1. Step 1: Write the proportion equation
   9,759,636 : 21,199,354 = 21,199,354 : x
2. Step 2: Convert to fraction form
   9,759,636/21,199,354 = 21,199,354/x
3. Step 3: Cross multiply
   9,759,636x = 21,199,354 × 21,199,354
4. Step 4: Simplify right side
   9,759,636x = 449,412,610,017,316
5. Step 5: Solve for x
   x = 449,412,610,017,316/9,759,636
6. Step 6: Final answer
   x = 46,048,091.34