Finding the Third Proportional to 20,302,762 and 42,278,568

Step by Step Solution

1. Step 1: Write the proportion equation
   20,302,762 : 42,278,568 = 42,278,568 : x
2. Step 2: Convert to fraction form
   20,302,762/42,278,568 = 42,278,568/x
3. Step 3: Cross multiply
   20,302,762x = 42,278,568 × 42,278,568
4. Step 4: Simplify right side
   20,302,762x = 1,787,477,312,130,624
5. Step 5: Solve for x
   x = 1,787,477,312,130,624/20,302,762
6. Step 6: Final answer
   x = 88,041,090.77