Finding the Third Proportional to 432,445.50 and 659,328

Step by Step Solution

1. Step 1: Write the proportion equation
   432,445.50 : 659,328 = 659,328 : x
2. Step 2: Convert to fraction form
   432,445.50/659,328 = 659,328/x
3. Step 3: Cross multiply
   432,445.50x = 659,328 × 659,328
4. Step 4: Simplify right side
   432,445.50x = 434,713,411,584
5. Step 5: Solve for x
   x = 434,713,411,584/432,445.50
6. Step 6: Final answer
   x = 1,005,244.39