Finding the Third Proportional to 8,858,862 and 13,666,066

Step by Step Solution

1. Step 1: Write the proportion equation
   8,858,862 : 13,666,066 = 13,666,066 : x
2. Step 2: Convert to fraction form
   8,858,862/13,666,066 = 13,666,066/x
3. Step 3: Cross multiply
   8,858,862x = 13,666,066 × 13,666,066
4. Step 4: Simplify right side
   8,858,862x = 186,761,359,916,356
5. Step 5: Solve for x
   x = 186,761,359,916,356/8,858,862
6. Step 6: Final answer
   x = 21,081,868.07