Finding the Third Proportional to 623,928.50 and 1,342,429

Step by Step Solution

1. Step 1: Write the proportion equation
   623,928.50 : 1,342,429 = 1,342,429 : x
2. Step 2: Convert to fraction form
   623,928.50/1,342,429 = 1,342,429/x
3. Step 3: Cross multiply
   623,928.50x = 1,342,429 × 1,342,429
4. Step 4: Simplify right side
   623,928.50x = 1,802,115,620,041
5. Step 5: Solve for x
   x = 1,802,115,620,041/623,928.50
6. Step 6: Final answer
   x = 2,888,336.76