Finding the Third Proportional to 3,177,738 and 7,061,611.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,177,738 : 7,061,611.50 = 7,061,611.50 : x
2. Step 2: Convert to fraction form
   3,177,738/7,061,611.50 = 7,061,611.50/x
3. Step 3: Cross multiply
   3,177,738x = 7,061,611.50 × 7,061,611.50
4. Step 4: Simplify right side
   3,177,738x = 49,866,356,976,932.25
5. Step 5: Solve for x
   x = 49,866,356,976,932.25/3,177,738
6. Step 6: Final answer
   x = 15,692,406.67