Finding the Third Proportional to 191,613 and 403,069.50

Step by Step Solution

1. Step 1: Write the proportion equation
   191,613 : 403,069.50 = 403,069.50 : x
2. Step 2: Convert to fraction form
   191,613/403,069.50 = 403,069.50/x
3. Step 3: Cross multiply
   191,613x = 403,069.50 × 403,069.50
4. Step 4: Simplify right side
   191,613x = 162,465,021,830.25
5. Step 5: Solve for x
   x = 162,465,021,830.25/191,613
6. Step 6: Final answer
   x = 847,881.00