Finding the Third Proportional to 451,842.50 and 978,070.50

Step by Step Solution

1. Step 1: Write the proportion equation
   451,842.50 : 978,070.50 = 978,070.50 : x
2. Step 2: Convert to fraction form
   451,842.50/978,070.50 = 978,070.50/x
3. Step 3: Cross multiply
   451,842.50x = 978,070.50 × 978,070.50
4. Step 4: Simplify right side
   451,842.50x = 956,621,902,970.25
5. Step 5: Solve for x
   x = 956,621,902,970.25/451,842.50
6. Step 6: Final answer
   x = 2,117,157.87