Finding the Third Proportional to 865,243,078,706 and 1,271,945,708,922

Step by Step Solution

1. Step 1: Write the proportion equation
   865,243,078,706 : 1,271,945,708,922 = 1,271,945,708,922 : x
2. Step 2: Convert to fraction form
   865,243,078,706/1,271,945,708,922 = 1,271,945,708,922/x
3. Step 3: Cross multiply
   865,243,078,706x = 1,271,945,708,922 × 1,271,945,708,922
4. Step 4: Simplify right side
   865,243,078,706x = 1,617,845,886,445,089,126,875,136
5. Step 5: Solve for x
   x = 1,617,845,886,445,089,126,875,136/865,243,078,706
6. Step 6: Final answer
   x = 1,869,816,617,157.61