Finding the Third Proportional to 12,691,677 and 19,619,710.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,691,677 : 19,619,710.50 = 19,619,710.50 : x
2. Step 2: Convert to fraction form
   12,691,677/19,619,710.50 = 19,619,710.50/x
3. Step 3: Cross multiply
   12,691,677x = 19,619,710.50 × 19,619,710.50
4. Step 4: Simplify right side
   12,691,677x = 384,933,040,103,810.25
5. Step 5: Solve for x
   x = 384,933,040,103,810.25/12,691,677
6. Step 6: Final answer
   x = 30,329,564.81