Finding the Third Proportional to 350,136 and 540,748.50

Step by Step Solution

1. Step 1: Write the proportion equation
   350,136 : 540,748.50 = 540,748.50 : x
2. Step 2: Convert to fraction form
   350,136/540,748.50 = 540,748.50/x
3. Step 3: Cross multiply
   350,136x = 540,748.50 × 540,748.50
4. Step 4: Simplify right side
   350,136x = 292,408,940,252.25
5. Step 5: Solve for x
   x = 292,408,940,252.25/350,136
6. Step 6: Final answer
   x = 835,129.61