Finding the Third Proportional to 156,789 and 236,641.50

Step by Step Solution

1. Step 1: Write the proportion equation
   156,789 : 236,641.50 = 236,641.50 : x
2. Step 2: Convert to fraction form
   156,789/236,641.50 = 236,641.50/x
3. Step 3: Cross multiply
   156,789x = 236,641.50 × 236,641.50
4. Step 4: Simplify right side
   156,789x = 55,999,199,522.25
5. Step 5: Solve for x
   x = 55,999,199,522.25/156,789
6. Step 6: Final answer
   x = 357,162.81