Finding the Third Proportional to 120,948,147 and 186,769,111.50

Step by Step Solution

1. Step 1: Write the proportion equation
   120,948,147 : 186,769,111.50 = 186,769,111.50 : x
2. Step 2: Convert to fraction form
   120,948,147/186,769,111.50 = 186,769,111.50/x
3. Step 3: Cross multiply
   120,948,147x = 186,769,111.50 × 186,769,111.50
4. Step 4: Simplify right side
   120,948,147x = 34,882,701,010,499,432
5. Step 5: Solve for x
   x = 34,882,701,010,499,432/120,948,147
6. Step 6: Final answer
   x = 288,410,379.78