Finding the Third Proportional to 9,111,021.75 and 19,816,366.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,111,021.75 : 19,816,366.50 = 19,816,366.50 : x
2. Step 2: Convert to fraction form
   9,111,021.75/19,816,366.50 = 19,816,366.50/x
3. Step 3: Cross multiply
   9,111,021.75x = 19,816,366.50 × 19,816,366.50
4. Step 4: Simplify right side
   9,111,021.75x = 392,688,381,262,322.25
5. Step 5: Solve for x
   x = 392,688,381,262,322.25/9,111,021.75
6. Step 6: Final answer
   x = 43,100,367.01