Finding the Third Proportional to 42,836,427 and 65,259,021

Step by Step Solution

1. Step 1: Write the proportion equation
   42,836,427 : 65,259,021 = 65,259,021 : x
2. Step 2: Convert to fraction form
   42,836,427/65,259,021 = 65,259,021/x
3. Step 3: Cross multiply
   42,836,427x = 65,259,021 × 65,259,021
4. Step 4: Simplify right side
   42,836,427x = 4,258,739,821,878,441
5. Step 5: Solve for x
   x = 4,258,739,821,878,441/42,836,427
6. Step 6: Final answer
   x = 99,418,651.84