Finding the Third Proportional to 1,621,659 and 2,281,071.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,621,659 : 2,281,071.50 = 2,281,071.50 : x
2. Step 2: Convert to fraction form
   1,621,659/2,281,071.50 = 2,281,071.50/x
3. Step 3: Cross multiply
   1,621,659x = 2,281,071.50 × 2,281,071.50
4. Step 4: Simplify right side
   1,621,659x = 5,203,287,188,112.25
5. Step 5: Solve for x
   x = 5,203,287,188,112.25/1,621,659
6. Step 6: Final answer
   x = 3,208,619.81