Finding the Third Proportional to 1,272,543 and 2,740,134

Step by Step Solution

1. Step 1: Write the proportion equation
   1,272,543 : 2,740,134 = 2,740,134 : x
2. Step 2: Convert to fraction form
   1,272,543/2,740,134 = 2,740,134/x
3. Step 3: Cross multiply
   1,272,543x = 2,740,134 × 2,740,134
4. Step 4: Simplify right side
   1,272,543x = 7,508,334,337,956
5. Step 5: Solve for x
   x = 7,508,334,337,956/1,272,543
6. Step 6: Final answer
   x = 5,900,259.82