Finding the Third Proportional to 235,603.50 and 556,111.50

Step by Step Solution

1. Step 1: Write the proportion equation
   235,603.50 : 556,111.50 = 556,111.50 : x
2. Step 2: Convert to fraction form
   235,603.50/556,111.50 = 556,111.50/x
3. Step 3: Cross multiply
   235,603.50x = 556,111.50 × 556,111.50
4. Step 4: Simplify right side
   235,603.50x = 309,260,000,432.25
5. Step 5: Solve for x
   x = 309,260,000,432.25/235,603.50
6. Step 6: Final answer
   x = 1,312,629.06