Finding the Third Proportional to 78,923,681,338 and 186,245,762,779

Step by Step Solution

1. Step 1: Write the proportion equation
   78,923,681,338 : 186,245,762,779 = 186,245,762,779 : x
2. Step 2: Convert to fraction form
   78,923,681,338/186,245,762,779 = 186,245,762,779/x
3. Step 3: Cross multiply
   78,923,681,338x = 186,245,762,779 × 186,245,762,779
4. Step 4: Simplify right side
   78,923,681,338x = 34,687,484,153,131,540,938,752
5. Step 5: Solve for x
   x = 34,687,484,153,131,540,938,752/78,923,681,338
6. Step 6: Final answer
   x = 439,506,667,264.78