Finding the Third Proportional to 136,331 and 291,615.50

Step by Step Solution

1. Step 1: Write the proportion equation
   136,331 : 291,615.50 = 291,615.50 : x
2. Step 2: Convert to fraction form
   136,331/291,615.50 = 291,615.50/x
3. Step 3: Cross multiply
   136,331x = 291,615.50 × 291,615.50
4. Step 4: Simplify right side
   136,331x = 85,039,599,840.25
5. Step 5: Solve for x
   x = 85,039,599,840.25/136,331
6. Step 6: Final answer
   x = 623,773.02