Finding the Third Proportional to 191,389.50 and 415,953

Step by Step Solution

1. Step 1: Write the proportion equation
   191,389.50 : 415,953 = 415,953 : x
2. Step 2: Convert to fraction form
   191,389.50/415,953 = 415,953/x
3. Step 3: Cross multiply
   191,389.50x = 415,953 × 415,953
4. Step 4: Simplify right side
   191,389.50x = 173,016,898,209
5. Step 5: Solve for x
   x = 173,016,898,209/191,389.50
6. Step 6: Final answer
   x = 904,004.13