Finding the Third Proportional to 919,144 and 1,379,688

Step by Step Solution

1. Step 1: Write the proportion equation
   919,144 : 1,379,688 = 1,379,688 : x
2. Step 2: Convert to fraction form
   919,144/1,379,688 = 1,379,688/x
3. Step 3: Cross multiply
   919,144x = 1,379,688 × 1,379,688
4. Step 4: Simplify right side
   919,144x = 1,903,538,977,344
5. Step 5: Solve for x
   x = 1,903,538,977,344/919,144
6. Step 6: Final answer
   x = 2,070,991.03