Finding the Third Proportional to 890,071 and 1,379,086

Step by Step Solution

1. Step 1: Write the proportion equation
   890,071 : 1,379,086 = 1,379,086 : x
2. Step 2: Convert to fraction form
   890,071/1,379,086 = 1,379,086/x
3. Step 3: Cross multiply
   890,071x = 1,379,086 × 1,379,086
4. Step 4: Simplify right side
   890,071x = 1,901,878,195,396
5. Step 5: Solve for x
   x = 1,901,878,195,396/890,071
6. Step 6: Final answer
   x = 2,136,771.33