Finding the Third Proportional to 478,915.88 and 741,609

Step by Step Solution

1. Step 1: Write the proportion equation
   478,915.88 : 741,609 = 741,609 : x
2. Step 2: Convert to fraction form
   478,915.88/741,609 = 741,609/x
3. Step 3: Cross multiply
   478,915.88x = 741,609 × 741,609
4. Step 4: Simplify right side
   478,915.88x = 549,983,908,881
5. Step 5: Solve for x
   x = 549,983,908,881/478,915.88
6. Step 6: Final answer
   x = 1,148,393.56