Finding the Third Proportional to 17,931,154,944 and 39,240,146,424

Step by Step Solution

1. Step 1: Write the proportion equation
   17,931,154,944 : 39,240,146,424 = 39,240,146,424 : x
2. Step 2: Convert to fraction form
   17,931,154,944/39,240,146,424 = 39,240,146,424/x
3. Step 3: Cross multiply
   17,931,154,944x = 39,240,146,424 × 39,240,146,424
4. Step 4: Simplify right side
   17,931,154,944x = 1,539,789,091,376,960,110,592
5. Step 5: Solve for x
   x = 1,539,789,091,376,960,110,592/17,931,154,944
6. Step 6: Final answer
   x = 85,872,276,280.35