Finding the Third Proportional to 412,978.50 and 872,613

Step by Step Solution

1. Step 1: Write the proportion equation
   412,978.50 : 872,613 = 872,613 : x
2. Step 2: Convert to fraction form
   412,978.50/872,613 = 872,613/x
3. Step 3: Cross multiply
   412,978.50x = 872,613 × 872,613
4. Step 4: Simplify right side
   412,978.50x = 761,453,447,769
5. Step 5: Solve for x
   x = 761,453,447,769/412,978.50
6. Step 6: Final answer
   x = 1,843,808.93