Finding the Third Proportional to 19,144,518 and 40,980,066

Step by Step Solution

1. Step 1: Write the proportion equation
   19,144,518 : 40,980,066 = 40,980,066 : x
2. Step 2: Convert to fraction form
   19,144,518/40,980,066 = 40,980,066/x
3. Step 3: Cross multiply
   19,144,518x = 40,980,066 × 40,980,066
4. Step 4: Simplify right side
   19,144,518x = 1,679,365,809,364,356
5. Step 5: Solve for x
   x = 1,679,365,809,364,356/19,144,518
6. Step 6: Final answer
   x = 87,720,453.94