Finding the Third Proportional to 804,207 and 1,225,178

Step by Step Solution

1. Step 1: Write the proportion equation
   804,207 : 1,225,178 = 1,225,178 : x
2. Step 2: Convert to fraction form
   804,207/1,225,178 = 1,225,178/x
3. Step 3: Cross multiply
   804,207x = 1,225,178 × 1,225,178
4. Step 4: Simplify right side
   804,207x = 1,501,061,131,684
5. Step 5: Solve for x
   x = 1,501,061,131,684/804,207
6. Step 6: Final answer
   x = 1,866,510.90