Finding the Third Proportional to 558,088 and 1,222,340

Step by Step Solution

1. Step 1: Write the proportion equation
   558,088 : 1,222,340 = 1,222,340 : x
2. Step 2: Convert to fraction form
   558,088/1,222,340 = 1,222,340/x
3. Step 3: Cross multiply
   558,088x = 1,222,340 × 1,222,340
4. Step 4: Simplify right side
   558,088x = 1,494,115,075,600
5. Step 5: Solve for x
   x = 1,494,115,075,600/558,088
6. Step 6: Final answer
   x = 2,677,203.37