Finding the Third Proportional to 12,699,793.50 and 19,078,303.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,699,793.50 : 19,078,303.50 = 19,078,303.50 : x
2. Step 2: Convert to fraction form
   12,699,793.50/19,078,303.50 = 19,078,303.50/x
3. Step 3: Cross multiply
   12,699,793.50x = 19,078,303.50 × 19,078,303.50
4. Step 4: Simplify right side
   12,699,793.50x = 363,981,664,438,112.25
5. Step 5: Solve for x
   x = 363,981,664,438,112.25/12,699,793.50
6. Step 6: Final answer
   x = 28,660,439.59