Finding the Third Proportional to 234,090 and 497,340

Step by Step Solution

1. Step 1: Write the proportion equation
   234,090 : 497,340 = 497,340 : x
2. Step 2: Convert to fraction form
   234,090/497,340 = 497,340/x
3. Step 3: Cross multiply
   234,090x = 497,340 × 497,340
4. Step 4: Simplify right side
   234,090x = 247,347,075,600
5. Step 5: Solve for x
   x = 247,347,075,600/234,090
6. Step 6: Final answer
   x = 1,056,632.39