Finding the Third Proportional to 1,222,140 and 2,687,931

Step by Step Solution

1. Step 1: Write the proportion equation
   1,222,140 : 2,687,931 = 2,687,931 : x
2. Step 2: Convert to fraction form
   1,222,140/2,687,931 = 2,687,931/x
3. Step 3: Cross multiply
   1,222,140x = 2,687,931 × 2,687,931
4. Step 4: Simplify right side
   1,222,140x = 7,224,973,060,761
5. Step 5: Solve for x
   x = 7,224,973,060,761/1,222,140
6. Step 6: Final answer
   x = 5,911,739.29