Finding the Third Proportional to 9,779,184 and 21,239,779.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,779,184 : 21,239,779.50 = 21,239,779.50 : x
2. Step 2: Convert to fraction form
   9,779,184/21,239,779.50 = 21,239,779.50/x
3. Step 3: Cross multiply
   9,779,184x = 21,239,779.50 × 21,239,779.50
4. Step 4: Simplify right side
   9,779,184x = 451,128,233,208,620.25
5. Step 5: Solve for x
   x = 451,128,233,208,620.25/9,779,184
6. Step 6: Final answer
   x = 46,131,480.21