Finding the Third Proportional to 265,113 and 401,530.50

Step by Step Solution

1. Step 1: Write the proportion equation
   265,113 : 401,530.50 = 401,530.50 : x
2. Step 2: Convert to fraction form
   265,113/401,530.50 = 401,530.50/x
3. Step 3: Cross multiply
   265,113x = 401,530.50 × 401,530.50
4. Step 4: Simplify right side
   265,113x = 161,226,742,430.25
5. Step 5: Solve for x
   x = 161,226,742,430.25/265,113
6. Step 6: Final answer
   x = 608,143.48