Finding the Third Proportional to 856,603,454.63 and 1,155,759,185.25

Step by Step Solution

1. Step 1: Write the proportion equation
   856,603,454.63 : 1,155,759,185.25 = 1,155,759,185.25 : x
2. Step 2: Convert to fraction form
   856,603,454.63/1,155,759,185.25 = 1,155,759,185.25/x
3. Step 3: Cross multiply
   856,603,454.63x = 1,155,759,185.25 × 1,155,759,185.25
4. Step 4: Simplify right side
   856,603,454.63x = 1,335,779,294,289,743,872
5. Step 5: Solve for x
   x = 1,335,779,294,289,743,872/856,603,454.63
6. Step 6: Final answer
   x = 1,559,390,505.70