Finding the Third Proportional to 245,854.13 and 371,042.72

Step by Step Solution

1. Step 1: Write the proportion equation
   245,854.13 : 371,042.72 = 371,042.72 : x
2. Step 2: Convert to fraction form
   245,854.13/371,042.72 = 371,042.72/x
3. Step 3: Cross multiply
   245,854.13x = 371,042.72 × 371,042.72
4. Step 4: Simplify right side
   245,854.13x = 137,672,699,137.39
5. Step 5: Solve for x
   x = 137,672,699,137.39/245,854.13
6. Step 6: Final answer
   x = 559,977.18