Finding the Third Proportional to 81,868,493 and 179,118,886

Step by Step Solution

1. Step 1: Write the proportion equation
   81,868,493 : 179,118,886 = 179,118,886 : x
2. Step 2: Convert to fraction form
   81,868,493/179,118,886 = 179,118,886/x
3. Step 3: Cross multiply
   81,868,493x = 179,118,886 × 179,118,886
4. Step 4: Simplify right side
   81,868,493x = 32,083,575,321,880,996
5. Step 5: Solve for x
   x = 32,083,575,321,880,996/81,868,493
6. Step 6: Final answer
   x = 391,891,607.46