Finding the Third Proportional to 877,123 and 1,312,105

Step by Step Solution

1. Step 1: Write the proportion equation
   877,123 : 1,312,105 = 1,312,105 : x
2. Step 2: Convert to fraction form
   877,123/1,312,105 = 1,312,105/x
3. Step 3: Cross multiply
   877,123x = 1,312,105 × 1,312,105
4. Step 4: Simplify right side
   877,123x = 1,721,619,531,025
5. Step 5: Solve for x
   x = 1,721,619,531,025/877,123
6. Step 6: Final answer
   x = 1,962,802.86