Finding the Third Proportional to 131,671.50 and 291,813

Step by Step Solution

1. Step 1: Write the proportion equation
   131,671.50 : 291,813 = 291,813 : x
2. Step 2: Convert to fraction form
   131,671.50/291,813 = 291,813/x
3. Step 3: Cross multiply
   131,671.50x = 291,813 × 291,813
4. Step 4: Simplify right side
   131,671.50x = 85,154,826,969
5. Step 5: Solve for x
   x = 85,154,826,969/131,671.50
6. Step 6: Final answer
   x = 646,721.78