Finding the Third Proportional to 340,312.50 and 740,632.50

Step by Step Solution

1. Step 1: Write the proportion equation
   340,312.50 : 740,632.50 = 740,632.50 : x
2. Step 2: Convert to fraction form
   340,312.50/740,632.50 = 740,632.50/x
3. Step 3: Cross multiply
   340,312.50x = 740,632.50 × 740,632.50
4. Step 4: Simplify right side
   340,312.50x = 548,536,500,056.25
5. Step 5: Solve for x
   x = 548,536,500,056.25/340,312.50
6. Step 6: Final answer
   x = 1,611,861.16