Finding the Third Proportional to 4,189,234 and 9,124,940

Step by Step Solution

1. Step 1: Write the proportion equation
   4,189,234 : 9,124,940 = 9,124,940 : x
2. Step 2: Convert to fraction form
   4,189,234/9,124,940 = 9,124,940/x
3. Step 3: Cross multiply
   4,189,234x = 9,124,940 × 9,124,940
4. Step 4: Simplify right side
   4,189,234x = 83,264,530,003,600
5. Step 5: Solve for x
   x = 83,264,530,003,600/4,189,234
6. Step 6: Final answer
   x = 19,875,836.49