Finding the Third Proportional to 120,743,770 and 188,290,109

Step by Step Solution

1. Step 1: Write the proportion equation
   120,743,770 : 188,290,109 = 188,290,109 : x
2. Step 2: Convert to fraction form
   120,743,770/188,290,109 = 188,290,109/x
3. Step 3: Cross multiply
   120,743,770x = 188,290,109 × 188,290,109
4. Step 4: Simplify right side
   120,743,770x = 35,453,165,147,231,880
5. Step 5: Solve for x
   x = 35,453,165,147,231,880/120,743,770
6. Step 6: Final answer
   x = 293,623,142.19