Finding the Third Proportional to 20,729,552 and 42,786,854

Step by Step Solution

1. Step 1: Write the proportion equation
   20,729,552 : 42,786,854 = 42,786,854 : x
2. Step 2: Convert to fraction form
   20,729,552/42,786,854 = 42,786,854/x
3. Step 3: Cross multiply
   20,729,552x = 42,786,854 × 42,786,854
4. Step 4: Simplify right side
   20,729,552x = 1,830,714,875,217,316
5. Step 5: Solve for x
   x = 1,830,714,875,217,316/20,729,552
6. Step 6: Final answer
   x = 88,314,251.81