Finding the Third Proportional to 221,918.63 and 314,010

Step by Step Solution

1. Step 1: Write the proportion equation
   221,918.63 : 314,010 = 314,010 : x
2. Step 2: Convert to fraction form
   221,918.63/314,010 = 314,010/x
3. Step 3: Cross multiply
   221,918.63x = 314,010 × 314,010
4. Step 4: Simplify right side
   221,918.63x = 98,602,280,100
5. Step 5: Solve for x
   x = 98,602,280,100/221,918.63
6. Step 6: Final answer
   x = 444,317.28