Finding the Third Proportional to 78,923,679,617 and 186,245,758,719

Step by Step Solution

1. Step 1: Write the proportion equation
   78,923,679,617 : 186,245,758,719 = 186,245,758,719 : x
2. Step 2: Convert to fraction form
   78,923,679,617/186,245,758,719 = 186,245,758,719/x
3. Step 3: Cross multiply
   78,923,679,617x = 186,245,758,719 × 186,245,758,719
4. Step 4: Simplify right side
   78,923,679,617x = 34,687,482,640,815,964,028,928
5. Step 5: Solve for x
   x = 34,687,482,640,815,964,028,928/78,923,679,617
6. Step 6: Final answer
   x = 439,506,657,686.86