Finding the Third Proportional to 784,627.50 and 1,212,429.50

Step by Step Solution

1. Step 1: Write the proportion equation
   784,627.50 : 1,212,429.50 = 1,212,429.50 : x
2. Step 2: Convert to fraction form
   784,627.50/1,212,429.50 = 1,212,429.50/x
3. Step 3: Cross multiply
   784,627.50x = 1,212,429.50 × 1,212,429.50
4. Step 4: Simplify right side
   784,627.50x = 1,469,985,292,470.25
5. Step 5: Solve for x
   x = 1,469,985,292,470.25/784,627.50
6. Step 6: Final answer
   x = 1,873,481.74