Finding the Third Proportional to 12,931,969.50 and 19,451,945.25

Step by Step Solution

1. Step 1: Write the proportion equation
   12,931,969.50 : 19,451,945.25 = 19,451,945.25 : x
2. Step 2: Convert to fraction form
   12,931,969.50/19,451,945.25 = 19,451,945.25/x
3. Step 3: Cross multiply
   12,931,969.50x = 19,451,945.25 × 19,451,945.25
4. Step 4: Simplify right side
   12,931,969.50x = 378,378,174,008,997.56
5. Step 5: Solve for x
   x = 378,378,174,008,997.56/12,931,969.50
6. Step 6: Final answer
   x = 29,259,129.79