Finding the Third Proportional to 140,594 and 215,068

Step by Step Solution

1. Step 1: Write the proportion equation
   140,594 : 215,068 = 215,068 : x
2. Step 2: Convert to fraction form
   140,594/215,068 = 215,068/x
3. Step 3: Cross multiply
   140,594x = 215,068 × 215,068
4. Step 4: Simplify right side
   140,594x = 46,254,244,624
5. Step 5: Solve for x
   x = 46,254,244,624/140,594
6. Step 6: Final answer
   x = 328,991.60