Finding the Third Proportional to 660,321 and 1,050,385.50

Step by Step Solution

1. Step 1: Write the proportion equation
   660,321 : 1,050,385.50 = 1,050,385.50 : x
2. Step 2: Convert to fraction form
   660,321/1,050,385.50 = 1,050,385.50/x
3. Step 3: Cross multiply
   660,321x = 1,050,385.50 × 1,050,385.50
4. Step 4: Simplify right side
   660,321x = 1,103,309,698,610.25
5. Step 5: Solve for x
   x = 1,103,309,698,610.25/660,321
6. Step 6: Final answer
   x = 1,670,868.71