Finding the Third Proportional to 1,139,946 and 1,778,931

Step by Step Solution

1. Step 1: Write the proportion equation
   1,139,946 : 1,778,931 = 1,778,931 : x
2. Step 2: Convert to fraction form
   1,139,946/1,778,931 = 1,778,931/x
3. Step 3: Cross multiply
   1,139,946x = 1,778,931 × 1,778,931
4. Step 4: Simplify right side
   1,139,946x = 3,164,595,502,761
5. Step 5: Solve for x
   x = 3,164,595,502,761/1,139,946
6. Step 6: Final answer
   x = 2,776,092.47