Finding the Third Proportional to 120,743,970 and 188,290,402.50

Step by Step Solution

1. Step 1: Write the proportion equation
   120,743,970 : 188,290,402.50 = 188,290,402.50 : x
2. Step 2: Convert to fraction form
   120,743,970/188,290,402.50 = 188,290,402.50/x
3. Step 3: Cross multiply
   120,743,970x = 188,290,402.50 × 188,290,402.50
4. Step 4: Simplify right side
   120,743,970x = 35,453,275,673,612,008
5. Step 5: Solve for x
   x = 35,453,275,673,612,008/120,743,970
6. Step 6: Final answer
   x = 293,623,571.21