Finding the Third Proportional to 366,448 and 788,300

Step by Step Solution

1. Step 1: Write the proportion equation
   366,448 : 788,300 = 788,300 : x
2. Step 2: Convert to fraction form
   366,448/788,300 = 788,300/x
3. Step 3: Cross multiply
   366,448x = 788,300 × 788,300
4. Step 4: Simplify right side
   366,448x = 621,416,890,000
5. Step 5: Solve for x
   x = 621,416,890,000/366,448
6. Step 6: Final answer
   x = 1,695,784.64