Finding the Third Proportional to 21,053,817 and 31,736,245.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,053,817 : 31,736,245.50 = 31,736,245.50 : x
2. Step 2: Convert to fraction form
   21,053,817/31,736,245.50 = 31,736,245.50/x
3. Step 3: Cross multiply
   21,053,817x = 31,736,245.50 × 31,736,245.50
4. Step 4: Simplify right side
   21,053,817x = 1,007,189,278,436,270.25
5. Step 5: Solve for x
   x = 1,007,189,278,436,270.25/21,053,817
6. Step 6: Final answer
   x = 47,838,797.04