Finding the Third Proportional to 140,818 and 293,289

Step by Step Solution

1. Step 1: Write the proportion equation
   140,818 : 293,289 = 293,289 : x
2. Step 2: Convert to fraction form
   140,818/293,289 = 293,289/x
3. Step 3: Cross multiply
   140,818x = 293,289 × 293,289
4. Step 4: Simplify right side
   140,818x = 86,018,437,521
5. Step 5: Solve for x
   x = 86,018,437,521/140,818
6. Step 6: Final answer
   x = 610,848.31