Finding the Third Proportional to 603,427.50 and 911,292

Step by Step Solution

1. Step 1: Write the proportion equation
   603,427.50 : 911,292 = 911,292 : x
2. Step 2: Convert to fraction form
   603,427.50/911,292 = 911,292/x
3. Step 3: Cross multiply
   603,427.50x = 911,292 × 911,292
4. Step 4: Simplify right side
   603,427.50x = 830,453,109,264
5. Step 5: Solve for x
   x = 830,453,109,264/603,427.50
6. Step 6: Final answer
   x = 1,376,226.82