Finding the Third Proportional to 453,724 and 978,158

Step by Step Solution

1. Step 1: Write the proportion equation
   453,724 : 978,158 = 978,158 : x
2. Step 2: Convert to fraction form
   453,724/978,158 = 978,158/x
3. Step 3: Cross multiply
   453,724x = 978,158 × 978,158
4. Step 4: Simplify right side
   453,724x = 956,793,072,964
5. Step 5: Solve for x
   x = 956,793,072,964/453,724
6. Step 6: Final answer
   x = 2,108,755.70