Finding the Third Proportional to 2,129,894 and 4,584,558

Step by Step Solution

1. Step 1: Write the proportion equation
   2,129,894 : 4,584,558 = 4,584,558 : x
2. Step 2: Convert to fraction form
   2,129,894/4,584,558 = 4,584,558/x
3. Step 3: Cross multiply
   2,129,894x = 4,584,558 × 4,584,558
4. Step 4: Simplify right side
   2,129,894x = 21,018,172,055,364
5. Step 5: Solve for x
   x = 21,018,172,055,364/2,129,894
6. Step 6: Final answer
   x = 9,868,177.50