Finding the Third Proportional to 503,688 and 760,386

Step by Step Solution

1. Step 1: Write the proportion equation
   503,688 : 760,386 = 760,386 : x
2. Step 2: Convert to fraction form
   503,688/760,386 = 760,386/x
3. Step 3: Cross multiply
   503,688x = 760,386 × 760,386
4. Step 4: Simplify right side
   503,688x = 578,186,868,996
5. Step 5: Solve for x
   x = 578,186,868,996/503,688
6. Step 6: Final answer
   x = 1,147,906.78