Finding the Third Proportional to 751,820 and 1,621,012

Step by Step Solution

1. Step 1: Write the proportion equation
   751,820 : 1,621,012 = 1,621,012 : x
2. Step 2: Convert to fraction form
   751,820/1,621,012 = 1,621,012/x
3. Step 3: Cross multiply
   751,820x = 1,621,012 × 1,621,012
4. Step 4: Simplify right side
   751,820x = 2,627,679,904,144
5. Step 5: Solve for x
   x = 2,627,679,904,144/751,820
6. Step 6: Final answer
   x = 3,495,091.78