Finding the Third Proportional to 140,788 and 291,557

Step by Step Solution

1. Step 1: Write the proportion equation
   140,788 : 291,557 = 291,557 : x
2. Step 2: Convert to fraction form
   140,788/291,557 = 291,557/x
3. Step 3: Cross multiply
   140,788x = 291,557 × 291,557
4. Step 4: Simplify right side
   140,788x = 85,005,484,249
5. Step 5: Solve for x
   x = 85,005,484,249/140,788
6. Step 6: Final answer
   x = 603,783.59