Finding the Third Proportional to 453,684 and 978,236

Step by Step Solution

1. Step 1: Write the proportion equation
   453,684 : 978,236 = 978,236 : x
2. Step 2: Convert to fraction form
   453,684/978,236 = 978,236/x
3. Step 3: Cross multiply
   453,684x = 978,236 × 978,236
4. Step 4: Simplify right side
   453,684x = 956,945,671,696
5. Step 5: Solve for x
   x = 956,945,671,696/453,684
6. Step 6: Final answer
   x = 2,109,277.98