Finding the Third Proportional to 522,555 and 781,801.50

Step by Step Solution

1. Step 1: Write the proportion equation
   522,555 : 781,801.50 = 781,801.50 : x
2. Step 2: Convert to fraction form
   522,555/781,801.50 = 781,801.50/x
3. Step 3: Cross multiply
   522,555x = 781,801.50 × 781,801.50
4. Step 4: Simplify right side
   522,555x = 611,213,585,402.25
5. Step 5: Solve for x
   x = 611,213,585,402.25/522,555
6. Step 6: Final answer
   x = 1,169,663.64