Finding the Third Proportional to 1,291,774 and 2,780,970.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,291,774 : 2,780,970.50 = 2,780,970.50 : x
2. Step 2: Convert to fraction form
   1,291,774/2,780,970.50 = 2,780,970.50/x
3. Step 3: Cross multiply
   1,291,774x = 2,780,970.50 × 2,780,970.50
4. Step 4: Simplify right side
   1,291,774x = 7,733,796,921,870.25
5. Step 5: Solve for x
   x = 7,733,796,921,870.25/1,291,774
6. Step 6: Final answer
   x = 5,986,958.18