Finding the Third Proportional to 99,502,686 and 215,303,868

Step by Step Solution

1. Step 1: Write the proportion equation
   99,502,686 : 215,303,868 = 215,303,868 : x
2. Step 2: Convert to fraction form
   99,502,686/215,303,868 = 215,303,868/x
3. Step 3: Cross multiply
   99,502,686x = 215,303,868 × 215,303,868
4. Step 4: Simplify right side
   99,502,686x = 46,355,755,575,761,424
5. Step 5: Solve for x
   x = 46,355,755,575,761,424/99,502,686
6. Step 6: Final answer
   x = 465,874,414.44