Finding the Third Proportional to 559,311 and 886,054.50

Step by Step Solution

1. Step 1: Write the proportion equation
   559,311 : 886,054.50 = 886,054.50 : x
2. Step 2: Convert to fraction form
   559,311/886,054.50 = 886,054.50/x
3. Step 3: Cross multiply
   559,311x = 886,054.50 × 886,054.50
4. Step 4: Simplify right side
   559,311x = 785,092,576,970.25
5. Step 5: Solve for x
   x = 785,092,576,970.25/559,311
6. Step 6: Final answer
   x = 1,403,678.06