Finding the Third Proportional to 2,148,478.31 and 3,107,074.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,148,478.31 : 3,107,074.50 = 3,107,074.50 : x
2. Step 2: Convert to fraction form
   2,148,478.31/3,107,074.50 = 3,107,074.50/x
3. Step 3: Cross multiply
   2,148,478.31x = 3,107,074.50 × 3,107,074.50
4. Step 4: Simplify right side
   2,148,478.31x = 9,653,911,948,550.25
5. Step 5: Solve for x
   x = 9,653,911,948,550.25/2,148,478.31
6. Step 6: Final answer
   x = 4,493,371.84