Finding the Third Proportional to 751,840 and 1,621,046

Step by Step Solution

1. Step 1: Write the proportion equation
   751,840 : 1,621,046 = 1,621,046 : x
2. Step 2: Convert to fraction form
   751,840/1,621,046 = 1,621,046/x
3. Step 3: Cross multiply
   751,840x = 1,621,046 × 1,621,046
4. Step 4: Simplify right side
   751,840x = 2,627,790,134,116
5. Step 5: Solve for x
   x = 2,627,790,134,116/751,840
6. Step 6: Final answer
   x = 3,495,145.42