Finding the Third Proportional to 763,875 and 1,680,287

Step by Step Solution

1. Step 1: Write the proportion equation
   763,875 : 1,680,287 = 1,680,287 : x
2. Step 2: Convert to fraction form
   763,875/1,680,287 = 1,680,287/x
3. Step 3: Cross multiply
   763,875x = 1,680,287 × 1,680,287
4. Step 4: Simplify right side
   763,875x = 2,823,364,402,369
5. Step 5: Solve for x
   x = 2,823,364,402,369/763,875
6. Step 6: Final answer
   x = 3,696,107.87