Finding the Third Proportional to 556,866 and 848,356.50

Step by Step Solution

1. Step 1: Write the proportion equation
   556,866 : 848,356.50 = 848,356.50 : x
2. Step 2: Convert to fraction form
   556,866/848,356.50 = 848,356.50/x
3. Step 3: Cross multiply
   556,866x = 848,356.50 × 848,356.50
4. Step 4: Simplify right side
   556,866x = 719,708,751,092.25
5. Step 5: Solve for x
   x = 719,708,751,092.25/556,866
6. Step 6: Final answer
   x = 1,292,427.17