Finding the Third Proportional to 5,687,386,890 and 12,364,693,864.50

Step by Step Solution

1. Step 1: Write the proportion equation
   5,687,386,890 : 12,364,693,864.50 = 12,364,693,864.50 : x
2. Step 2: Convert to fraction form
   5,687,386,890/12,364,693,864.50 = 12,364,693,864.50/x
3. Step 3: Cross multiply
   5,687,386,890x = 12,364,693,864.50 × 12,364,693,864.50
4. Step 4: Simplify right side
   5,687,386,890x = 152,885,654,362,803,929,088
5. Step 5: Solve for x
   x = 152,885,654,362,803,929,088/5,687,386,890
6. Step 6: Final answer
   x = 26,881,528,779.34