Finding the Third Proportional to 120,743,980 and 188,290,428

Step by Step Solution

1. Step 1: Write the proportion equation
   120,743,980 : 188,290,428 = 188,290,428 : x
2. Step 2: Convert to fraction form
   120,743,980/188,290,428 = 188,290,428/x
3. Step 3: Cross multiply
   120,743,980x = 188,290,428 × 188,290,428
4. Step 4: Simplify right side
   120,743,980x = 35,453,285,276,423,184
5. Step 5: Solve for x
   x = 35,453,285,276,423,184/120,743,980
6. Step 6: Final answer
   x = 293,623,626.42