Finding the Third Proportional to 685,383,079.50 and 1,044,144,643.50

Step by Step Solution

1. Step 1: Write the proportion equation
   685,383,079.50 : 1,044,144,643.50 = 1,044,144,643.50 : x
2. Step 2: Convert to fraction form
   685,383,079.50/1,044,144,643.50 = 1,044,144,643.50/x
3. Step 3: Cross multiply
   685,383,079.50x = 1,044,144,643.50 × 1,044,144,643.50
4. Step 4: Simplify right side
   685,383,079.50x = 1,090,238,036,549,742,080
5. Step 5: Solve for x
   x = 1,090,238,036,549,742,080/685,383,079.50
6. Step 6: Final answer
   x = 1,590,698,791.90