Finding the Third Proportional to 434,490 and 908,701.50

Step by Step Solution

1. Step 1: Write the proportion equation
   434,490 : 908,701.50 = 908,701.50 : x
2. Step 2: Convert to fraction form
   434,490/908,701.50 = 908,701.50/x
3. Step 3: Cross multiply
   434,490x = 908,701.50 × 908,701.50
4. Step 4: Simplify right side
   434,490x = 825,738,416,102.25
5. Step 5: Solve for x
   x = 825,738,416,102.25/434,490
6. Step 6: Final answer
   x = 1,900,477.38