Finding the Third Proportional to 78,165,810 and 167,065,780.50

Step by Step Solution

1. Step 1: Write the proportion equation
   78,165,810 : 167,065,780.50 = 167,065,780.50 : x
2. Step 2: Convert to fraction form
   78,165,810/167,065,780.50 = 167,065,780.50/x
3. Step 3: Cross multiply
   78,165,810x = 167,065,780.50 × 167,065,780.50
4. Step 4: Simplify right side
   78,165,810x = 27,910,975,014,074,180
5. Step 5: Solve for x
   x = 27,910,975,014,074,180/78,165,810
6. Step 6: Final answer
   x = 357,073,956.17