Finding the Third Proportional to 751,810 and 1,620,990

Step by Step Solution

1. Step 1: Write the proportion equation
   751,810 : 1,620,990 = 1,620,990 : x
2. Step 2: Convert to fraction form
   751,810/1,620,990 = 1,620,990/x
3. Step 3: Cross multiply
   751,810x = 1,620,990 × 1,620,990
4. Step 4: Simplify right side
   751,810x = 2,627,608,580,100
5. Step 5: Solve for x
   x = 2,627,608,580,100/751,810
6. Step 6: Final answer
   x = 3,495,043.40