Finding the Third Proportional to 742,516.50 and 1,158,123

Step by Step Solution

1. Step 1: Write the proportion equation
   742,516.50 : 1,158,123 = 1,158,123 : x
2. Step 2: Convert to fraction form
   742,516.50/1,158,123 = 1,158,123/x
3. Step 3: Cross multiply
   742,516.50x = 1,158,123 × 1,158,123
4. Step 4: Simplify right side
   742,516.50x = 1,341,248,883,129
5. Step 5: Solve for x
   x = 1,341,248,883,129/742,516.50
6. Step 6: Final answer
   x = 1,806,355.66