Finding the Third Proportional to 153,819 and 340,807.50

Step by Step Solution

1. Step 1: Write the proportion equation
   153,819 : 340,807.50 = 340,807.50 : x
2. Step 2: Convert to fraction form
   153,819/340,807.50 = 340,807.50/x
3. Step 3: Cross multiply
   153,819x = 340,807.50 × 340,807.50
4. Step 4: Simplify right side
   153,819x = 116,149,752,056.25
5. Step 5: Solve for x
   x = 116,149,752,056.25/153,819
6. Step 6: Final answer
   x = 755,106.66