Finding the Third Proportional to 581,753,470.50 and 816,315,300

Step by Step Solution

1. Step 1: Write the proportion equation
   581,753,470.50 : 816,315,300 = 816,315,300 : x
2. Step 2: Convert to fraction form
   581,753,470.50/816,315,300 = 816,315,300/x
3. Step 3: Cross multiply
   581,753,470.50x = 816,315,300 × 816,315,300
4. Step 4: Simplify right side
   581,753,470.50x = 666,370,669,014,089,984
5. Step 5: Solve for x
   x = 666,370,669,014,089,984/581,753,470.50
6. Step 6: Final answer
   x = 1,145,451,987.49