Finding the Third Proportional to 661,441.50 and 1,051,240.50

Step by Step Solution

1. Step 1: Write the proportion equation
   661,441.50 : 1,051,240.50 = 1,051,240.50 : x
2. Step 2: Convert to fraction form
   661,441.50/1,051,240.50 = 1,051,240.50/x
3. Step 3: Cross multiply
   661,441.50x = 1,051,240.50 × 1,051,240.50
4. Step 4: Simplify right side
   661,441.50x = 1,105,106,588,840.25
5. Step 5: Solve for x
   x = 1,105,106,588,840.25/661,441.50
6. Step 6: Final answer
   x = 1,670,754.84