Finding the Third Proportional to 624,320 and 1,343,389

Step by Step Solution

1. Step 1: Write the proportion equation
   624,320 : 1,343,389 = 1,343,389 : x
2. Step 2: Convert to fraction form
   624,320/1,343,389 = 1,343,389/x
3. Step 3: Cross multiply
   624,320x = 1,343,389 × 1,343,389
4. Step 4: Simplify right side
   624,320x = 1,804,694,005,321
5. Step 5: Solve for x
   x = 1,804,694,005,321/624,320
6. Step 6: Final answer
   x = 2,890,655.44