Finding the Third Proportional to 453,670 and 978,210

Step by Step Solution

1. Step 1: Write the proportion equation
   453,670 : 978,210 = 978,210 : x
2. Step 2: Convert to fraction form
   453,670/978,210 = 978,210/x
3. Step 3: Cross multiply
   453,670x = 978,210 × 978,210
4. Step 4: Simplify right side
   453,670x = 956,894,804,100
5. Step 5: Solve for x
   x = 956,894,804,100/453,670
6. Step 6: Final answer
   x = 2,109,230.95