Finding the Third Proportional to 606,123 and 909,184.50

Step by Step Solution

1. Step 1: Write the proportion equation
   606,123 : 909,184.50 = 909,184.50 : x
2. Step 2: Convert to fraction form
   606,123/909,184.50 = 909,184.50/x
3. Step 3: Cross multiply
   606,123x = 909,184.50 × 909,184.50
4. Step 4: Simplify right side
   606,123x = 826,616,455,040.25
5. Step 5: Solve for x
   x = 826,616,455,040.25/606,123
6. Step 6: Final answer
   x = 1,363,776.75