Finding the Third Proportional to 21,784,449 and 47,401,612.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,784,449 : 47,401,612.50 = 47,401,612.50 : x
2. Step 2: Convert to fraction form
   21,784,449/47,401,612.50 = 47,401,612.50/x
3. Step 3: Cross multiply
   21,784,449x = 47,401,612.50 × 47,401,612.50
4. Step 4: Simplify right side
   21,784,449x = 2,246,912,867,600,156.25
5. Step 5: Solve for x
   x = 2,246,912,867,600,156.25/21,784,449
6. Step 6: Final answer
   x = 103,142,974.50