Finding the Third Proportional to 340,094.50 and 742,358.50

Step by Step Solution

1. Step 1: Write the proportion equation
   340,094.50 : 742,358.50 = 742,358.50 : x
2. Step 2: Convert to fraction form
   340,094.50/742,358.50 = 742,358.50/x
3. Step 3: Cross multiply
   340,094.50x = 742,358.50 × 742,358.50
4. Step 4: Simplify right side
   340,094.50x = 551,096,142,522.25
5. Step 5: Solve for x
   x = 551,096,142,522.25/340,094.50
6. Step 6: Final answer
   x = 1,620,420.63