Finding the Third Proportional to 782,818 and 1,212,106

Step by Step Solution

1. Step 1: Write the proportion equation
   782,818 : 1,212,106 = 1,212,106 : x
2. Step 2: Convert to fraction form
   782,818/1,212,106 = 1,212,106/x
3. Step 3: Cross multiply
   782,818x = 1,212,106 × 1,212,106
4. Step 4: Simplify right side
   782,818x = 1,469,200,955,236
5. Step 5: Solve for x
   x = 1,469,200,955,236/782,818
6. Step 6: Final answer
   x = 1,876,810.39