Finding the Third Proportional to 181,005 and 390,061.50

Step by Step Solution

1. Step 1: Write the proportion equation
   181,005 : 390,061.50 = 390,061.50 : x
2. Step 2: Convert to fraction form
   181,005/390,061.50 = 390,061.50/x
3. Step 3: Cross multiply
   181,005x = 390,061.50 × 390,061.50
4. Step 4: Simplify right side
   181,005x = 152,147,973,782.25
5. Step 5: Solve for x
   x = 152,147,973,782.25/181,005
6. Step 6: Final answer
   x = 840,573.32