Finding the Third Proportional to 2,129,591.25 and 4,618,498.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,129,591.25 : 4,618,498.50 = 4,618,498.50 : x
2. Step 2: Convert to fraction form
   2,129,591.25/4,618,498.50 = 4,618,498.50/x
3. Step 3: Cross multiply
   2,129,591.25x = 4,618,498.50 × 4,618,498.50
4. Step 4: Simplify right side
   2,129,591.25x = 21,330,528,394,502.25
5. Step 5: Solve for x
   x = 21,330,528,394,502.25/2,129,591.25
6. Step 6: Final answer
   x = 10,016,254.71