Finding the Third Proportional to 919,320 and 1,379,988

Step by Step Solution

1. Step 1: Write the proportion equation
   919,320 : 1,379,988 = 1,379,988 : x
2. Step 2: Convert to fraction form
   919,320/1,379,988 = 1,379,988/x
3. Step 3: Cross multiply
   919,320x = 1,379,988 × 1,379,988
4. Step 4: Simplify right side
   919,320x = 1,904,366,880,144
5. Step 5: Solve for x
   x = 1,904,366,880,144/919,320
6. Step 6: Final answer
   x = 2,071,495.11