Finding the Third Proportional to 421,132.50 and 913,194

Step by Step Solution

1. Step 1: Write the proportion equation
   421,132.50 : 913,194 = 913,194 : x
2. Step 2: Convert to fraction form
   421,132.50/913,194 = 913,194/x
3. Step 3: Cross multiply
   421,132.50x = 913,194 × 913,194
4. Step 4: Simplify right side
   421,132.50x = 833,923,281,636
5. Step 5: Solve for x
   x = 833,923,281,636/421,132.50
6. Step 6: Final answer
   x = 1,980,192.18