Finding the Third Proportional to 493,149 and 742,558.50

Step by Step Solution

1. Step 1: Write the proportion equation
   493,149 : 742,558.50 = 742,558.50 : x
2. Step 2: Convert to fraction form
   493,149/742,558.50 = 742,558.50/x
3. Step 3: Cross multiply
   493,149x = 742,558.50 × 742,558.50
4. Step 4: Simplify right side
   493,149x = 551,393,125,922.25
5. Step 5: Solve for x
   x = 551,393,125,922.25/493,149
6. Step 6: Final answer
   x = 1,118,106.55