Finding the Third Proportional to 2,143,140 and 3,242,262

Step by Step Solution

1. Step 1: Write the proportion equation
   2,143,140 : 3,242,262 = 3,242,262 : x
2. Step 2: Convert to fraction form
   2,143,140/3,242,262 = 3,242,262/x
3. Step 3: Cross multiply
   2,143,140x = 3,242,262 × 3,242,262
4. Step 4: Simplify right side
   2,143,140x = 10,512,262,876,644
5. Step 5: Solve for x
   x = 10,512,262,876,644/2,143,140
6. Step 6: Final answer
   x = 4,905,075.21