Finding the Third Proportional to 431,191.50 and 907,063.50

Step by Step Solution

1. Step 1: Write the proportion equation
   431,191.50 : 907,063.50 = 907,063.50 : x
2. Step 2: Convert to fraction form
   431,191.50/907,063.50 = 907,063.50/x
3. Step 3: Cross multiply
   431,191.50x = 907,063.50 × 907,063.50
4. Step 4: Simplify right side
   431,191.50x = 822,764,193,032.25
5. Step 5: Solve for x
   x = 822,764,193,032.25/431,191.50
6. Step 6: Final answer
   x = 1,908,117.84