Finding the Third Proportional to 828,636 and 1,254,156

Step by Step Solution

1. Step 1: Write the proportion equation
   828,636 : 1,254,156 = 1,254,156 : x
2. Step 2: Convert to fraction form
   828,636/1,254,156 = 1,254,156/x
3. Step 3: Cross multiply
   828,636x = 1,254,156 × 1,254,156
4. Step 4: Simplify right side
   828,636x = 1,572,907,272,336
5. Step 5: Solve for x
   x = 1,572,907,272,336/828,636
6. Step 6: Final answer
   x = 1,898,188.44