Finding the Third Proportional to 1,328,400 and 2,751,322.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,328,400 : 2,751,322.50 = 2,751,322.50 : x
2. Step 2: Convert to fraction form
   1,328,400/2,751,322.50 = 2,751,322.50/x
3. Step 3: Cross multiply
   1,328,400x = 2,751,322.50 × 2,751,322.50
4. Step 4: Simplify right side
   1,328,400x = 7,569,775,499,006.25
5. Step 5: Solve for x
   x = 7,569,775,499,006.25/1,328,400
6. Step 6: Final answer
   x = 5,698,415.76