Finding the Third Proportional to 80,697,850 and 172,615,010

Step by Step Solution

1. Step 1: Write the proportion equation
   80,697,850 : 172,615,010 = 172,615,010 : x
2. Step 2: Convert to fraction form
   80,697,850/172,615,010 = 172,615,010/x
3. Step 3: Cross multiply
   80,697,850x = 172,615,010 × 172,615,010
4. Step 4: Simplify right side
   80,697,850x = 29,795,941,677,300,100
5. Step 5: Solve for x
   x = 29,795,941,677,300,100/80,697,850
6. Step 6: Final answer
   x = 369,228,445.09