Finding the Third Proportional to 442,119.52 and 684,781.59

Step by Step Solution

1. Step 1: Write the proportion equation
   442,119.52 : 684,781.59 = 684,781.59 : x
2. Step 2: Convert to fraction form
   442,119.52/684,781.59 = 684,781.59/x
3. Step 3: Cross multiply
   442,119.52x = 684,781.59 × 684,781.59
4. Step 4: Simplify right side
   442,119.52x = 468,925,831,138.79
5. Step 5: Solve for x
   x = 468,925,831,138.79/442,119.52
6. Step 6: Final answer
   x = 1,060,631.38