Finding the Third Proportional to 812,960 and 1,207,648.50

Step by Step Solution

1. Step 1: Write the proportion equation
   812,960 : 1,207,648.50 = 1,207,648.50 : x
2. Step 2: Convert to fraction form
   812,960/1,207,648.50 = 1,207,648.50/x
3. Step 3: Cross multiply
   812,960x = 1,207,648.50 × 1,207,648.50
4. Step 4: Simplify right side
   812,960x = 1,458,414,899,552.25
5. Step 5: Solve for x
   x = 1,458,414,899,552.25/812,960
6. Step 6: Final answer
   x = 1,793,956.53