Finding the Third Proportional to 10,209,412 and 15,816,066

Step by Step Solution

1. Step 1: Write the proportion equation
   10,209,412 : 15,816,066 = 15,816,066 : x
2. Step 2: Convert to fraction form
   10,209,412/15,816,066 = 15,816,066/x
3. Step 3: Cross multiply
   10,209,412x = 15,816,066 × 15,816,066
4. Step 4: Simplify right side
   10,209,412x = 250,147,943,716,356
5. Step 5: Solve for x
   x = 250,147,943,716,356/10,209,412
6. Step 6: Final answer
   x = 24,501,699.38