Finding the Third Proportional to 8,789,090 and 19,279,990

Step by Step Solution

1. Step 1: Write the proportion equation
   8,789,090 : 19,279,990 = 19,279,990 : x
2. Step 2: Convert to fraction form
   8,789,090/19,279,990 = 19,279,990/x
3. Step 3: Cross multiply
   8,789,090x = 19,279,990 × 19,279,990
4. Step 4: Simplify right side
   8,789,090x = 371,718,014,400,100
5. Step 5: Solve for x
   x = 371,718,014,400,100/8,789,090
6. Step 6: Final answer
   x = 42,293,117.31