Finding the Third Proportional to 120,743,990 and 188,290,437

Step by Step Solution

1. Step 1: Write the proportion equation
   120,743,990 : 188,290,437 = 188,290,437 : x
2. Step 2: Convert to fraction form
   120,743,990/188,290,437 = 188,290,437/x
3. Step 3: Cross multiply
   120,743,990x = 188,290,437 × 188,290,437
4. Step 4: Simplify right side
   120,743,990x = 35,453,288,665,650,968
5. Step 5: Solve for x
   x = 35,453,288,665,650,968/120,743,990
6. Step 6: Final answer
   x = 293,623,630.18