Finding the Third Proportional to 355,624 and 772,300

Step by Step Solution

1. Step 1: Write the proportion equation
   355,624 : 772,300 = 772,300 : x
2. Step 2: Convert to fraction form
   355,624/772,300 = 772,300/x
3. Step 3: Cross multiply
   355,624x = 772,300 × 772,300
4. Step 4: Simplify right side
   355,624x = 596,447,290,000
5. Step 5: Solve for x
   x = 596,447,290,000/355,624
6. Step 6: Final answer
   x = 1,677,185.14