Finding the Third Proportional to 12,157,624.13 and 18,487,090.69

Step by Step Solution

1. Step 1: Write the proportion equation
   12,157,624.13 : 18,487,090.69 = 18,487,090.69 : x
2. Step 2: Convert to fraction form
   12,157,624.13/18,487,090.69 = 18,487,090.69/x
3. Step 3: Cross multiply
   12,157,624.13x = 18,487,090.69 × 18,487,090.69
4. Step 4: Simplify right side
   12,157,624.13x = 341,772,522,087,849.25
5. Step 5: Solve for x
   x = 341,772,522,087,849.25/12,157,624.13
6. Step 6: Final answer
   x = 28,111,785.54