Finding the Third Proportional to 105,969,945 and 143,129,782.50

Step by Step Solution

1. Step 1: Write the proportion equation
   105,969,945 : 143,129,782.50 = 143,129,782.50 : x
2. Step 2: Convert to fraction form
   105,969,945/143,129,782.50 = 143,129,782.50/x
3. Step 3: Cross multiply
   105,969,945x = 143,129,782.50 × 143,129,782.50
4. Step 4: Simplify right side
   105,969,945x = 20,486,134,638,497,308
5. Step 5: Solve for x
   x = 20,486,134,638,497,308/105,969,945
6. Step 6: Final answer
   x = 193,320,234.70