Finding the Third Proportional to 354,296.32 and 538,005.59

Step by Step Solution

1. Step 1: Write the proportion equation
   354,296.32 : 538,005.59 = 538,005.59 : x
2. Step 2: Convert to fraction form
   354,296.32/538,005.59 = 538,005.59/x
3. Step 3: Cross multiply
   354,296.32x = 538,005.59 × 538,005.59
4. Step 4: Simplify right side
   354,296.32x = 289,450,010,499.95
5. Step 5: Solve for x
   x = 289,450,010,499.95/354,296.32
6. Step 6: Final answer
   x = 816,971.54