Finding the Third Proportional to 763,872 and 1,680,280.50

Step by Step Solution

1. Step 1: Write the proportion equation
   763,872 : 1,680,280.50 = 1,680,280.50 : x
2. Step 2: Convert to fraction form
   763,872/1,680,280.50 = 1,680,280.50/x
3. Step 3: Cross multiply
   763,872x = 1,680,280.50 × 1,680,280.50
4. Step 4: Simplify right side
   763,872x = 2,823,342,558,680.25
5. Step 5: Solve for x
   x = 2,823,342,558,680.25/763,872
6. Step 6: Final answer
   x = 3,696,093.79