Finding the Third Proportional to 425,665.50 and 634,803

Step by Step Solution

1. Step 1: Write the proportion equation
   425,665.50 : 634,803 = 634,803 : x
2. Step 2: Convert to fraction form
   425,665.50/634,803 = 634,803/x
3. Step 3: Cross multiply
   425,665.50x = 634,803 × 634,803
4. Step 4: Simplify right side
   425,665.50x = 402,974,848,809
5. Step 5: Solve for x
   x = 402,974,848,809/425,665.50
6. Step 6: Final answer
   x = 946,693.70