Finding the Third Proportional to 340,158 and 742,483.50

Step by Step Solution

1. Step 1: Write the proportion equation
   340,158 : 742,483.50 = 742,483.50 : x
2. Step 2: Convert to fraction form
   340,158/742,483.50 = 742,483.50/x
3. Step 3: Cross multiply
   340,158x = 742,483.50 × 742,483.50
4. Step 4: Simplify right side
   340,158x = 551,281,747,772.25
5. Step 5: Solve for x
   x = 551,281,747,772.25/340,158
6. Step 6: Final answer
   x = 1,620,663.77