Finding the Third Proportional to 699,693,544 and 1,619,833,443

Step by Step Solution

1. Step 1: Write the proportion equation
   699,693,544 : 1,619,833,443 = 1,619,833,443 : x
2. Step 2: Convert to fraction form
   699,693,544/1,619,833,443 = 1,619,833,443/x
3. Step 3: Cross multiply
   699,693,544x = 1,619,833,443 × 1,619,833,443
4. Step 4: Simplify right side
   699,693,544x = 2,623,860,383,061,234,176
5. Step 5: Solve for x
   x = 2,623,860,383,061,234,176/699,693,544
6. Step 6: Final answer
   x = 3,750,013,710.38