Finding the Third Proportional to 809,672 and 1,210,047

Step by Step Solution

1. Step 1: Write the proportion equation
   809,672 : 1,210,047 = 1,210,047 : x
2. Step 2: Convert to fraction form
   809,672/1,210,047 = 1,210,047/x
3. Step 3: Cross multiply
   809,672x = 1,210,047 × 1,210,047
4. Step 4: Simplify right side
   809,672x = 1,464,213,742,209
5. Step 5: Solve for x
   x = 1,464,213,742,209/809,672
6. Step 6: Final answer
   x = 1,808,403.58