Finding the Third Proportional to 120,830,784 and 178,981,147.50

Step by Step Solution

1. Step 1: Write the proportion equation
   120,830,784 : 178,981,147.50 = 178,981,147.50 : x
2. Step 2: Convert to fraction form
   120,830,784/178,981,147.50 = 178,981,147.50/x
3. Step 3: Cross multiply
   120,830,784x = 178,981,147.50 × 178,981,147.50
4. Step 4: Simplify right side
   120,830,784x = 32,034,251,160,416,756
5. Step 5: Solve for x
   x = 32,034,251,160,416,756/120,830,784
6. Step 6: Final answer
   x = 265,116,637.50