Finding the Third Proportional to 21,118,711.50 and 50,859,400.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,118,711.50 : 50,859,400.50 = 50,859,400.50 : x
2. Step 2: Convert to fraction form
   21,118,711.50/50,859,400.50 = 50,859,400.50/x
3. Step 3: Cross multiply
   21,118,711.50x = 50,859,400.50 × 50,859,400.50
4. Step 4: Simplify right side
   21,118,711.50x = 2,586,678,619,219,400
5. Step 5: Solve for x
   x = 2,586,678,619,219,400/21,118,711.50
6. Step 6: Final answer
   x = 122,482,785.90