Finding the Third Proportional to 191,560 and 288,798

Step by Step Solution

1. Step 1: Write the proportion equation
   191,560 : 288,798 = 288,798 : x
2. Step 2: Convert to fraction form
   191,560/288,798 = 288,798/x
3. Step 3: Cross multiply
   191,560x = 288,798 × 288,798
4. Step 4: Simplify right side
   191,560x = 83,404,284,804
5. Step 5: Solve for x
   x = 83,404,284,804/191,560
6. Step 6: Final answer
   x = 435,395.10