Finding the Third Proportional to 890,392 and 1,379,564

Step by Step Solution

1. Step 1: Write the proportion equation
   890,392 : 1,379,564 = 1,379,564 : x
2. Step 2: Convert to fraction form
   890,392/1,379,564 = 1,379,564/x
3. Step 3: Cross multiply
   890,392x = 1,379,564 × 1,379,564
4. Step 4: Simplify right side
   890,392x = 1,903,196,830,096
5. Step 5: Solve for x
   x = 1,903,196,830,096/890,392
6. Step 6: Final answer
   x = 2,137,481.95