Finding the Third Proportional to 751,819.50 and 1,621,003.50

Step by Step Solution

1. Step 1: Write the proportion equation
   751,819.50 : 1,621,003.50 = 1,621,003.50 : x
2. Step 2: Convert to fraction form
   751,819.50/1,621,003.50 = 1,621,003.50/x
3. Step 3: Cross multiply
   751,819.50x = 1,621,003.50 × 1,621,003.50
4. Step 4: Simplify right side
   751,819.50x = 2,627,652,347,012.25
5. Step 5: Solve for x
   x = 2,627,652,347,012.25/751,819.50
6. Step 6: Final answer
   x = 3,495,057.45